Friday, April 10, 2026

John Paul II’s Theology of the Body

 

 


“In response to the dualistic vision of the person (separation of mind and body) spawned primarily by Rene Descartes, Wojtyła’s second book, The Acting Person (1969), argues that persons act as an integrated, unified being …”.

 Charles Dern

 

John Paul II’s “Triptych” of the Human Person

 January 8, 2013 by Charles Dern

 

This article focuses on the first part of Pope John Paul II’s Theology of the Body which broadens the vision of humanity from not just this life (historical man), but to what God intended for man before the Fall (original man), as well as what God has in store for those who love Him (eschatological man). 

 

Pope John Paul II; “Original Man” Adam being created; “Historical Man” in utero;

and “Eschatological Man” entering eternity.

 

We have good news! The rich teaching of John Paul II’s Theology of the Body (TOB) is beginning to filter into seminaries, undergraduate theology courses, and into specialized seminars.  But despite this good news, many of today’s priests, deacons, and religious likely were educated before the insights from the TOB were integrated into various seminary and monastic programs.  Adding to this problem is that the TOB was originally delivered as a series of talks, with its style complicating and confounding what the late Pontiff was trying to communicate.  This problem is unfortunate (but not insurmountable) because his Theology of the Body is essentially a series of reflections on scripture passages, many of which appear in the regular Sunday reading cycles.  Given that most lay adults receive what precious little instruction they do through Sunday homilies, they may be missing out on some very profound insights that counteract utilitarian views of the person, and misunderstandings of marriage, that so pervade contemporary society.

 

John Paul II began his work for the Theology of the Body in the early 1970s as a book project when he was still Cardinal Karol Wojtyła. As an academic philosopher, Wojtyła concerned himself in particular with the philosophical question of what it means to be a human person. 

 

In addition to a number of articles, Wojtyła published two books on this subject.  His earlier work, Love and Responsibility (1960), examines the nature of human love—and by implication, Divine Love—and concludes that love’s very essence includes both communion (gift of self to the other, such as occurs in the Trinity)—and creativity (an outpouring of something new from the communion, such as God’s outpouring of Love in creation). …. In response to the dualistic vision of the person (separation of mind and body) spawned primarily by Rene Descartes, Wojtyła’s second book, The Acting Person (1969), argues that persons act as an integrated, unified being. ….

 

This article focuses on the first part of his Theology of the Body which, “takes a step back” as it were, and broadens the vision of humanity from not just this life (historical man), but to what God intended for man before the Fall (original man), as well as what God has in store for those who love Him (eschatological man).  The three reflections are likened to a “Triptych” or three-panel painting in which all three sections are required to see the whole picture.  This stands in contrast to the sciences that tend to analyze the person only in a single dimension (e.g., biology), and contemporary philosophies, that look at this life only (e.g., existentialism).  These approaches offer what John Paul II calls an “inadequate anthropology” of the human person.

 

Original Man

Reflections on “original man” in JP II’s theological study on the human being, begins by examining Mathew 19:3-8, when the Pharisees question Jesus about the permissibility of divorce. …. Christ answers that divorce was not in God’s original plan for man and woman.  He then buttresses his answer in two very significant ways.  First, he quotes key passages from each of the two creation accounts in Genesis (the Creator “made them male and female” and “the two shall become one flesh”).   Second, Jesus starts and ends His response to the Pharisees by referring to “the beginning”.  This exchange asserts that there was a time (“the beginning”) in which humans did not need divorce, just as the Creator intended. 

 

Here, John Paul II finds that by studying humanity in the original state intended by God, one can understand more deeply what it means to be human.

 

Original Solitude – Human Subjectivity

Even though the only “data” available are the two Genesis creation accounts, John Paul II extracts multiple insights. The first insight is that humans are God’s special crown of visible creation.  This idea is not new, yet many do not understand deeply enough why and how the human person is extraordinarily special.  Only then can we understand why divorce, sexual acts outside of heterosexual marriage, and even artificial contraception intrinsically assault the dignity due every human being.

 

The foremost, and best-known, feature that makes humans special, with respect to the rest of creation, is that God created us in his image and likeness (Gen 1:27).  This concept alone is sufficient to ground human dignity, but also strengthened by related insights.  John Paul II states that humanity’s unique position is delineated further by being set apart in the creation cycle: “man by contrast, is not created according to a natural succession, but the Creator seems to halt {in Gen. 1:27} before calling him to existence, as if he entered back into himself to make a decision….” 

….

 

Immediately after creating man and woman, God blesses and commands them to be fertile, till the earth, and have dominion over all plants and animals.  These commands further distinguish humanity from the remainder of creation:

 

“Already in the light of the Bible’s first sentences, man can neither be understood nor explained in his full depth with the categories taken from the ‘world’….” ….  The depth described here by John Paul II is the “subjectivity” (or personhood) of humans.  In other words, humans share materiality with the “world” in our composition and general physical structure, but humans are not mere objects for use (even responsible use) and, thus, have an inherent right to dignity and respect, or in other words, they must always be treated with love.

 

The second creation account (Gen 2:4b ff.) further affirms human subjectivity because only “man”: 1) directly receives the Lord’s “breath of life;” 2) is given charge of the Garden of Eden; and, 3) receives the moral command to avoid eating the fruit from the tree of knowledge of good and evil.  Death is the outcome for eating this fruit. John Paul II notes that the consequence of death is “a radical antithesis of all that man had been endowed with.” ….  In other words, before the Fall (“the beginning”), all of creation still is perfectly “good,” or “full of life,” as God intended.  There was no death, let alone the experience of death.  But man alone, because of his subjectivity, has a capacity for some understanding of this outcome.

 

Original Unity – The Communion of Persons

The second insight is that humans can and need to commune with others.  This is a defining feature of subjectivity that we equate here with “personhood.”  Thus, it is significant that the Lord himself speaks the words: “It is not good for the man to be alone” (Gen. 2:18).  John Paul II calls the man’s state, before the creation of the woman, “original solitude,” which is a quality unique to subjects who can say: “I.”  As a first remedy to the man’s solitude, the Lord creates the various animals, telling the man to name them.  In so doing, the man again distinguishes himself from them as being a totally different creature.  Because the man literally occupies a whole different plane of existence from the animals, as Genesis 2:20 tells us: “none proved to be a suitable partner for the man.”


The Lord then puts the man into a “deep sleep” or “torpor.” 

John Paul II takes Genesis 2:21 to mean more than mere sleep “but a specific return to non-being … in order that the solitary “man” may, by God’s creative initiative, reemerge from that moment in his double unity as male and female.” ….  Upon awakening, the man immediately recognizes that the woman is “a help like unto himself.”  He can relate to her in ways that are completely unique, unlike his relationship with any other creature.  John Paul II calls the man’s recognition of the possibility of communio with the woman “original unity.” (John Paul II also notes that the joy evident in the words: “This at last …” further demonstrates the subjectivity of the man (and by extension, the woman) given that joy is an emotion proper only to persons.)  ….

 

Returning to the dialogue between Jesus and the Pharisees in Mathew 19, it is very significant that Jesus himself quotes the next verse from Genesis: “For this reason a man will leave his father and his mother and unite with his wife, and the two will be one flesh.  So, it is that they are no longer two, but one flesh.” …. It is not merely the physical complimentarily of man and woman that enables the two to become “one flesh,” animals can express this complimentarity just as well.  Rather, the physical complimentarily, combined with human subjectivity, makes marriage possible between man and woman. They then engage in not only a physical act, but a personal actcommunio personarum, or communion of persons.  For John Paul II, “‘Communio’ says more {than ‘community’} and with greater precision, because it indicates precisely the ‘help’ that derives in some way from the very fact of existing as a person ‘beside’ a person.” ….

 

This unity is even more deeply significant when we consider our relationship with God.  We know that humans are already the image of God by virtue of our individual subjectivity, but we recall that God has revealed himself as Triune; that is, God is his own communio personarum (Father, Son, and Holy Spirit).  

 

Thus, “man became the image of God, not only through his own humanity, but also through the communion of persons … He is, in fact, ‘from the beginning’ … essentially the image of an inscrutable divine communion of Persons … This … constitutes perhaps the deepest theological aspect of everything one can say about man.” …. This idea has profound significance for married love.

 

St. John of the Cross (on whom Wojtyła wrote his theology dissertation) describes love as a cycle of self-gift between persons. ….  In 1 John 4:8, it tells us that God is Love and, therefore, we can consider the Trinity—the eternal and infinite self-giving of the Father, Son, and Holy Spirit to each other—as the paradigm for loving another.  We also realize that if humans are made in God’s image, then a man and woman in marriage can most closely approximate the love within the Trinity, as the married man and woman fulfill the Creator’s intention for the “two becoming one flesh” by becoming a total and complete self-gift to each other. ….

 

It also follows that this total and complete gift of body and soul is possible only in a monogamous heterosexual marriage.  Other “unions” (e.g., polygamy, polyandry, and same-sex couples) contravene the Creator’s intention.  Non-contracepted, conjugal acts are the fullest possible embodied expression of the communion personarum.  Only these acts permit the possibility of total self-gift and total receptivity, including the potential for becoming a parent through one’s spouse.

We can now see why, when a true covenantal marriage exists, divorce inherently opposes the Creator’s plan. 

 

The gift of self in marriage certainly extends far beyond the conjugal act, and true love exists within a marriage covenant, where each promises the total self to the other “until death.”  Therefore, to divorce one’s spouse is to break this covenant, treating the spouse, and the covenant, as something disposable that served its use for a time.

 

Original Nakedness and Original Shame

The teaching against divorce can be very difficult to live in contemporary society.  Theologically, part of the reason for this difficulty is the existence of original sin, which separates humans from the “original” state to the present “historical” state. Genesis 2:25 (“The man and woman were naked, yet they felt no shame”) reveals another important reason why no divorce existed “in the beginning.”  John Paul II explains:

Genesis 2:25 certainly speaks about something extraordinary that lies outside the limits of shame known by human experience, and that is decisive for the particular fullness of interpersonal communication … In such a relationship, the words “they did not feel shame” can only signify … an original depth in affirming what is inherent in the person … To this fullness of “exterior” perception, expressed by physical nakedness, corresponds the “interior” fullness of the vision of man in God, according to the image of the Creator. ….

 

In other words, the Creator meant for us to see each other as he sees us; specifically, spouses are meant to “know” each other in the total personhood of body and spirit.  Before the Fall, no break existed between what can be known about the person via the senses, and his or her spirit “hidden” within.

After the Fall, the man and the woman suddenly realize that they are naked.  The words of Genesis 3:7 “reveal a certain constitutive fracture in the person’s interior, a breakup, as it were, of man’s original spiritual and somatic unity.” …. 

John Paul II calls this experience “original shame,” which is a human attribute retained in our present historical state. 

 

The Fall has made it difficult for humans to see the totality of other persons, and this difficulty is most acutely evident within the often broken relationships between men and women.

 

Historical Man – The Problem of Adultery

John Paul II begins his reflection on the second part of the triptych—historical man—by considering our reductive view of each other.  Here, the Pope again begins with Christ’s words: “You have heard that it was said, ‘You shall not commit adultery.’  But I say to you: Whoever looks at a woman to desire her {in a reductive way} has already committed adultery with her in his heart.” (Mt. 5:27-28). ….

 

Never one to miss an opportunity to reaffirm man’s subjectivity, John Paul II quickly notes that “looking to desire” (lusting) is clearly an interior act that only humans, and not animals, can do. 17  Even more important is the radical way in which Christ addresses his audience, which would have understood adultery as a mere right of property for a man over his wife, and, therefore, as merely sin of the body.  In contrast, “the effective necessity of monogamy as an essential and indispensable implication of the commandment ‘You shall not commit adultery’ never reached the consciousness and ethos of the later generations of the Chosen People.” ….

 

Christ’s words remind us that the root sin of adultery is not a property issue. Rather, adultery breaks the personal covenant between the man and the woman, and is the antithesis of conjugal faithfulness, a “good which can only be adequately realized in the exclusive relation between the two (that is, in the spousal relationship between one man and one woman).” ….

 

If the conjugal act between spouses is a “truthful sign” of covenantal love in what John Paul II calls “the spousal meaning of the body,” then in contrast, the sin of adultery (or extra-marital sex of any kind) is the absence of the possibility of communio.  Now instead of promising the unity of body, mind, and soul exclusively to each other in full personhood, the adulterous couple ruptures the unity that accompanies participation in the most deeply personal human activity: sexuality.  In the process, the couple essentially commits a lie with their bodies, because no marriage covenant is present to protect the full personhood of either party, and of any children who might be conceived between them.  ….

 

Even “looking to desire” (as opposed to a completed act of adultery) detaches the spousal meaning from the body, and from the person as a whole.  Such an act conflicts with the person’s inherent dignity by removing “the reciprocal existence of man and woman from the personal perspectives ‘of communion’” and reduces the person “toward utilitarian dimensions, in whose sphere of influence one human being ‘makes use’ of another human being …” ….  Such a reduction is again “an inadequate anthropology” because its incomplete foundation is a false understanding about the meaning of a human person, and in particular, an embodied human person who is male or female.

 

John Paul II sees Christ’s teaching about adultery not so much as accusing the “heart,” but rather as calling us to something higher in which we live the original unity described in Genesis, as much as possible, in our fallen state.  Jesus’ teaching often is criticized for being a return to Manichaeism, which condemns the body as “evil.” 

 

Instead, however, the teaching on adultery calls humans to consider each other as gifts in their entire personhood, both interior and exterior, as the unity of body, mind, and soul.  This is possible through Christ’s “redemption of the body,” which allows us to regain, among other things, “a clear sense of the spousal meaning of the body” …. that is, what it really means to “know” another within the realm of marital love.

 

In summary, historical man (that is, each of us on this earthly journey) is called to exercise “self-dominion” in which he “fulfills what is essentially personal in him.” …. When we practice moral virtues, such as temperance and purity, we actually become more human, or perhaps better put, more in the image of God.  Through the grace of Jesus Christ, we become integrated persons, who more successfully fight the “battles” that want to split the spirit and the flesh.

 

Eschatological Man


Thus far, we have considered humans as God first intended (original man), and humans as we are (historical man).  To complete the picture of what it means to be human, John Paul II considers “heavenly” or eschatological man, the third panel of the Triptych.  Whereas the Pharisees’ question concerning divorce was the impetus for reflecting upon original man, reflections upon eschatological man originate from the Sadducees’ question concerning marriage in heaven.

 

In Mark 12:20-27, the Sadducees seek to trick Jesus with a question concerning levirate marriage. ….  In that time, if a Jewish woman was widowed and childless, then the brother of the deceased husband was bound to take her as a wife and try to provide an heir.  If hypothetically, this happens “seven” times, then the Sadducees, who did not believe in an afterlife, want to know whose wife this repeatedly widowed woman will be after the resurrection.  As he often did, Jesus rejects his questioners’ premises, re-directing the conversation to address more important topics.

 

The last part of his answer reminds us that God is the God of the living, not the dead (verses 26-27).  The first part points out that those who rise from the dead “neither marry nor are given in marriage, but they are like angels in heaven” (verse 25).  John Paul II notes that Christ’s answer tells us that “Marriage and procreation do not constitute man’s eschatological future.  In the resurrection they essentially lose their raison d’être.” ….

 

Although resurrected bodies will retain their maleness or femaleness, there will be “a spiritualization that is different from that of earthly life (and even different from that of the very ‘beginning’).” …. This new spiritualization will mark freedom from the “opposition” of mind and body, and a return to a perfecting harmony between the two.  It will be a realization “of God’s self-communication in his very divinity, not only to the soul, but to the whole of man’s psychosomatic subjectivity” ... that is, to the whole person consisting of integrated body and soul.

 

But what of the “spousal meaning of the body” that predominates when considering man’s original and historical state?  Recall that for John Paul II, the body is “spousal” because it enables man and woman to give themselves completely to each other in the totality of their humanity (physical as well as spiritual).  In the resurrection, one will be in complete and total self-gift to God with “a love of such depth and power of concentration on God himself … that it completely absorbs the person’s whole psychosomatic subjectivity … a concentration that cannot be anything but full participation in God’s inner life, that is, in trinitarian (sic) Reality itself … ” ….

 

One often hears an emphasis on the “soul” only as being essential for the afterlife, with the body being an afterthought that will be “reattached” in the general resurrection.  

 

In contrast, the above concept reaffirms the body’s enduring importance and integrality for defining a human person.  Instead of the body being, perhaps, a spiritualized appendage to the resurrected person, John Paul II asserts that we will know God’s love in the whole of our embodied personhood.

 

Celibacy for the Kingdom

Finally, the place of celibacy for the sake of the kingdom also plays an integral part in a proper understanding of human sexuality.  John Paul II returns to the question of divorce in Mathew 19, specifically the disciples’ reaction to Jesus’ teaching on chaste married love, which appears so difficult that his disciples retort that “it is better not to marry.” Jesus notes that “not all can accept this word” (on marital fidelity) but continues by lauding those who “have renounced marriage for the sake of the kingdom of heaven” (Mt. 19:12). As with Jesus’ teaching on “adultery in the heart,” one must realize that the thought of “continence for the kingdom of heaven,” as John Paul II calls it, was a radical idea to the people of the Old Testament who, because of the words of Genesis 1:28, saw fertility as a blessing, and childlessness as a curse.

 

John Paul II states that those who remain celibate for the sake of the kingdom have a “particular sensibility of the human spirit that seems to anticipate, already in the condition of temporality, what man will share in the future resurrection.” 29  The grace of lifelong celibacy is an “invitation to solitude for God.” … which never ceases to be a personal dimension of everyone’s {male or female} nature, a new and even fuller form of intersubjective communion with others.” ….  Yet, this celibacy does not negate the communio personarum emphasized as essential for marriage. Instead, celibacy for the sake of the kingdom allows communio with others that is just as important and potentially just as (spiritually) fruitful.

 

Conclusion

This Triptych vision of “integral humanity” confirms in scripture what Karol Wojtyła sought to work out philosophically.  Explaining this integral humanity, which is the ultimate thesis of the Theology of the Body, is essential for understanding and opposing the immorality of artificial contraception and divorce. …. Many theological arguments favoring contraceptives justify splitting the “spiritual” needs of spousal unity (i.e., a need for intercourse) from the “merely physical” problem of spacing births.  The use of a device or a biochemical approach to prevent fertilization is then reduced to a merely physical or “ontic” evil that must be “weighed” as part of the spouses’ total situation. …. In the secular world, the primacy of rationality to the exclusion of embodiedness as integral to the definition of the human person has lead to the legalization of abortion, and the justification of embryo-destructive stem cell research.

 

So how do these three states of man (original, historical and eschatological) combine to provide a total picture of what it means to be a human person, and specifically, male and female persons in marriage?  First and foremost, all three states point to the subjectivity, and the psychosomatic unity, of the human person.  Original man needs his body to perform uniquely human activities (such as tilling the earth) and continually displays behavior (such as solitude or joy of unity) that other animals cannot display.  Historical man learns that adultery is not merely a physical act of property violation, but an interior act as well.  Even the commission of “adultery in the heart” assaults human dignity.  Christ’s teaching on the resurrection reiterates the body’s essentiality to the human person in the afterlife for eschatological man.

 

Each part of this Triptych also contributes essential components to reveal the full meaning of the human person.  Genesis’ description of man’s joy after God created woman reveals that humans must commune with each other.  When a man and woman marry, they enter a marital covenant that the Creator himself made possible by creating humanity as “male and female” so that the “two can become one flesh,” and can emulate, in a special way, the communio personarum of the Trinity.  This vision is vastly richer and deeper than a secular view that reduces marriage to a couple who ratifies a mere contract that can be nullified when it no longer fulfills the needs of one or both parties.

 

The historical perspective reminds us that our will and reason are darkened by passions that blind us to the other as God’s intended gift of being fully human.  Instead, we often see others as things to fulfill our own wants and needs.  One practical effect of this fallen nature is to confuse us into accepting evils, such as artificial contraception, as being “reasonable,” if not “good.”  With God’s grace, however, we can recognize evil when it exists, avoid calling it a “good,” and pursue true fulfillment.

 

The eschatological perspective reminds us that our ultimate purpose is to be united with the Beatific Vision.  In cultures that overemphasize sex as an ultimate good, Christ’s teaching, that there will be no marriage in heaven, reaffirms the value of chastity and, especially, the value of lifelong celibacy which anticipates the kingdom to come.

 

The Theology of the Body offers many additional reflections on many other passages of scripture.  As a whole, the Theology of the Body offers a powerful, beautiful, and positive answer to the many contemporary social problems with sexuality at their root.  John Paul II’s catechesis offers a depth that can fulfill individuals highly trained in theology and spirituality.  Yet, simultaneously, everyone can benefit from pondering the handful of scriptural reflections offered here.

 

Sunday, March 22, 2026

Genesis Flood a catastrophism differing from Grand Canyon and Mount Saint Helens

 



What MSH [Mount Saint Helens] demonstrates is not that the

fossil forests at places like Yellowstone were deposited by a giant water flood,

but that they were deposited in a volcanic environment like MSH”.

Kevin Nelstead

  

This 2020 article needed to be written:

What does Mt St Helens teach us about Noah’s flood? Almost nothing. – GeoChristian

 

What does Mt St Helens teach us about Noah’s flood? Almost nothing.

 

All I got from Mt St Helens (MSH) in the days following its May 18, 1980 eruption was a few pretty sunsets. I was an undergraduate student in my first year at the University of Utah, and most of the ash cloud passed far north of Salt Lake City. MSH became more significant for me a few years later as a geology graduate student at Washington State University, where my research project involved analysis and correlation of Cascade Range tephra (volcanic ash) layers buried at various levels in the Quaternary Palouse Loess of eastern Washington. Some of these tephra layers correlated to ancient eruptions of MSH, dated around 13,000 and 36,000 years ago.

 

Fortieth Anniversary

 

Due in part to easy accessibility, the 1980 eruptions of MSH have been studied more closely than just about any other explosive volcanic eruption in history. Geologists have learned a great deal about certain types of volcanic deposits from this natural laboratory.

 

Young-Earth creationists (YECs) claim that Mt St Helens has provided many proofs that Noah’s flood could have been responsible for Earth’s sedimentary rock layers, fossil record, landforms, and more. May 18, 2020 marks the fortieth anniversary of the 1980 eruption of MSH, and I would like to look at what some of these YEC claims are, and whether the claims are valid. Three YEC arguments I will look at are:

  • Rapid formation of volcanic sediments at MSH show that Earth’s sedimentary rock record could have been deposited during Noah’s flood.
  • Rapid canyon formation at MSH establishes that other canyons, such as the Grand Canyon, could have formed during Noah’s flood.
  • Logs associated with Spirit Lake demonstrate that fossil forests and coal in the geologic record could have been formed by Noah’s flood.

 

It turns out that each of these arguments is of limited validity. The MSH eruptions had an impact on geological thinking at a time when geologists were becoming more aware of catastrophic events in Earth history, but this does not confirm the claims that YECs make about MSH.

 

MSH and Rapid Sedimentation

 

The May 18, 1980 eruption of MSH did not involve extrusion of fountains or rivers of lava flowing over the landscape. Instead, this was an explosive eruption, ejecting volcanic ash particles high into the atmosphere, as well as ground-hugging pyroclastic flows that blasted northwards from the volcano.

 

Pyroclastic flows consist of fast moving, hot volcanic gases mixed with blobs of molten material, volcanic glass, minerals, and rock fragments. This material may be hotter than 400°C (750°F), flowing across the landscape at hundreds of miles per hour. As the hot cloud of material slows down, grains settle out of the current, forming layers with sedimentary structures such as graded bedding and cross-bedding. This is sort of a hybrid between a volcanic and sedimentary process, producing what are known as volcaniclastic deposits. Another type of deposit from this eruption was volcanic mudflows known as lahars. Lahars form when precipitation or snowmelt mixes with loose volcanic ash to make a thick slurry of material that may flow tens of miles away from the volcano.

 

YECs have used these deposits as evidence that rapid, catastrophic processes can lay down sediments with features that are common in Earth’s sedimentary rock record. If MSH could create layers of rock complete with cross bedding and graded bedding in a short amount of time, why couldn’t the entire sedimentary rock record, many thousands of feet thick in places, have been deposited by a much larger catastrophic event, namely Noah’s flood?

 

The deposits of MSH do indeed show that volcanoes can do a lot of geologic work in a short amount of time. It did not take the 1980 eruptions of MSH to demonstrate this, and no geologists were taken by surprise. Any good volcanologist or sedimentologist will be able to recognize similar volcano-associated rocks in the rock record. Volcaniclastic rocks are common, and are thousands of feet thick in places. Rocks in some of the northern areas of Yellowstone National Park, as well as surrounding areas to the north, east, and southeast, are composed largely of volcanic rocks of the Absaroka Volcanic Supergroup.

 

These rocks are older than and unrelated to the volcanic rocks of the more recent Yellowstone Caldera. The Absaroka rocks include lahars (mudflows), andesite lava flows, pyroclastic flows, and more coarsely crystallized rocks associated with magma chambers. By studying the flows, magma chambers, and associated dikes, geologists have concluded that some of the volcanoes must have been stratovolcanoes the size of the major Cascade Range volcanoes, such as Mt Shasta or Mt Rainier.

 

Studying the products of the 1980 eruption of MSH has helped geologists understand these ancient volcanic rocks better.

 

How much contribution has the study of MSH had to the understanding other types of sedimentary rocks? Just about none. This is because most sedimentary rocks in the geologic record are quite unlike the volcaniclastic rocks produced by catastrophic processes at MSH. Most sandstones and conglomerates are nothing like the deposits of MSH. Yes, many sandstones have sedimentary structures such as cross bedding and graded bedding, but these are known to form in many non-catastrophic settings. Other sedimentary rocks have even less resemblance to anything associated with MSH. Most limestone is formed by biological processes, such as the secretion of calcium carbonate shells and other hard parts by invertebrate organisms. Most shale must have been deposited in quiet environments, as clay does not rapidly settle out from agitated water. Evaporite rocks (rock salt, gypsum, etc.) also have no analogs at MSH.

 

The conclusion is that most rocks in the sedimentary rock record were formed by processes that must have been quite different than what happened at MSH in 1980, and many layers were deposited in settings that have little to do with catastrophism. MSH tells us little about how most sedimentary rocks of the geologic rock record originated.

 

MSH and the Rapid Formation of Canyons

 

In addition to depositing pyroclastic and mudflow deposits, there are erosional features associated with eruptions of MSH. In 1982, rapid snowmelt led to severe flooding at MSH, which carved a 100-foot deep canyon north of the gaping crater in just a few days.

 

This canyon is known informally as Step Canyon, and YECs claim it is a 1/40th scale version of the Grand Canyon in Arizona. YECs then argue that if snowmelt at MSH could lead to the rapid erosion of Step Canyon, then certainly the much larger Noah’s flood could have carved the Grand Canyon in a short period of time as well.

 

There are multiple problems with this reasoning. It sounds impressive to say that there is a 1/40th-scale version of the Grand Canyon, but this ratio is misleading. At its deepest point, Step Canyon is a little over 100 feet deep, which is roughly 1/40th the depth of the Grand Canyon, so perhaps that is where YECs get that ratio. For much of its length, the Grand Canyon ranges from 5 to 10, and up to about 18 miles wide. The canyon at MSH is less than 0.1 miles wide, which is about 1/50th the width of the narrower sections of the main part of the Grand Canyon. Finally, the Grand Canyon is about 275 miles long, whereas Step Canyon at MSH is about 4 miles long from the crater to its intersection with Engineer’s Canyon. The National Park Service says that the volume of the Grand Canyon is 4.17 trillion cubic meters. I made a rough estimate that Step Canyon at MSH has a volume of about 40 million cubic meters. This means that the volume of the rapidly formed MSH canyon is about 1/100,000th the volume of the Grand Canyon, which is not quite as impressive to readers as saying it is 1/40th the size.

 

A second difficulty for the YEC claim is that the Grand Canyon was carved through thousands of feet of solid rock, including crystalline metamorphic and igneous rocks at the bottom of the canyon. Most of the erosion at Step Canyon at MSH, on the other hand, was through unconsolidated sand and gravel. It should be obvious that comparing erosion through sand and gravel to erosion through schist and gneiss is comparing apples and oranges.

 

A final challenge is that Step Canyon at MSH developed on a steep slope, which facilitated rapid erosion. The average gradient of the Colorado River in the Grand Canyon is only 8 feet per mile. Step Creek, on the other hand, drops 2300 feet in 4 miles, which is about 575 feet per mile. Erosion on a steep, unconsolidated slope is certainly going to be far more rapid than erosion along a low-gradient streambed in erosion-resistant rocks.

 

While the rapid erosion of canyons at MSH is impressive, it falls far short of providing an effective model for carving the giant canyons of the world in only a few months’ time.

 

MSH and Fossil Forests

 

 

 

The pyroclastic flows associated with the May 18th eruption downed or burned trees up to 19 miles (31 km) from the volcano. A large number of trees ended up floating in Spirit Lake, where many continue to float on the lake surface forty years later. Some of the trees are floating in a vertical position rather than horizontally. The trees of MSH have provided a good analog for understanding fossilized trees in some ancient volcanic deposits. The Absaroka Volcanic Supergroup mentioned earlier contains abundant petrified trees in some areas, such as at Specimen Ridge in Yellowstone National Park. Many of these petrified trees are upright, which used to be interpreted as meaning that the trees were buried where they grew. Now, largely due to studies at MSH, we understand that trees can be ripped out of the ground, transported, and deposited in an upright position at a distance from where they grew.

 

[Creationists] have claimed that this is powerful evidence that a giant catastrophe like Noah’s flood could have deposited the forests at Yellowstone. This is a great overstatement. What MSH demonstrates is not that the fossil forests at places like Yellowstone were deposited by a giant water flood, but that they were deposited in a volcanic environment like MSH. The Absaroka rocks are clearly volcanic in origin, with features I described earlier. These petrified trees were transported and buried by the local catastrophes of eruptions at stratovolcanoes, just as the trees at MSH were transported and buried by the eruption of a volcano.

 

YECs also claim that dead tree material is accumulating at the bottom of Spirit Lake at MSH, and that this will turn into peat, which is a precursor to coal. Perhaps this will form peat, or a peat-like deposit, but there are plenty of other non-catastrophic environments where peat is accumulating faster than at Spirit Lake. The world’s coal deposits as a whole, however, have little in common with the floor of Spirit Lake, which is not a very large lake. Most coal is found in sequences of sandstone, siltstone, and shale that give every appearance of being swampy environments such as river floodplains or deltas. The closest thing to a catastrophe in these environments would be a normal flood or channel migration. No MSH-sized catastrophe is needed.

 

MSH and the Bible

 

As an old-Earth Christian, I accept the Bible as the trustworthy and authoritative Word of God.

 

I not only believe that God created the universe from nothing, I believe that Noah’s flood was a real, historic event. I do not accept the idea that the story of Noah is some sort of inspired myth, but that it really happened.

 

YECs claim that MSH helps “prove” that a global Noah’s flood really occurred, and that the Bible is true. I think this effort is misguided for three general reasons. The first of these is that, like many inerrancy-affirming Old Testament scholars, pastors, and scientists, I am not convinced that Genesis 6-9 even requires a global flood like the YECs envision. Entire books have been written on this subject, but the case for some sort of local (though still large) flood can be summarized as 1. The story is told from the perspective of Noah on Earth’s surface, not in orbit around spheroidal planet (which the Hebrews may have had no concept of), 2. The vocabulary in the flood account is more ambiguous in Hebrew than it is in our English-language translations, and 3. Universal language in the Old Testament is frequently hyperbolic. In other words, “all the earth” seldom literally means “all the earth” in the Old Testament.

 

A second reason why I do not think all these YEC attempts to explain Earth history are valid is that the flood account in Genesis tells us nothing about the geological work of Noah’s flood. The Bible makes no claims about the origin of sedimentary, igneous, or metamorphic rocks. It makes no claims about the origin of the fossil record. It makes no claims about the eruptions of stratovolcanoes, the carving of canyons large or small, or the deposition of fossil forests. The entire YEC flood geology story, exemplified by their claims about MSH or the Grand Canyon, is built on extrapolations from the text of Genesis, rather than on actual exegesis of the text.

 

Finally, YEC flood geology does not provide a credible model for explaining the origin of features of Earth’s crust. I have shown that the eruption of MSH tells us little or nothing about the origin of sedimentary rock layers, canyons, or fossil forests. Most sedimentary rocks are nothing like deposits formed by volcanic eruptions, the canyons at MSH do not demonstrate that Earth’s large canyons could have formed quickly, and MSH provides a model for petrified forests in volcaniclastic rocks, but not much else.

 

What claims does the Bible make about the work of Noah’s flood? None, really. The truthfulness of the Bible does not depend on whether or not MSH provides a model for Noah’s flood. In reality, MSH provides a model for understanding certain ancient volcanic eruptions, but not much else. YEC claims about MSH and the Noah’s flood are based on unwarranted extrapolations from the text of Genesis rather than exegesis of the text of Genesis.

 

Grace and Peace

 

©2020 Kevin Nelstead, GeoChristian.com

 

 

 

 

Saturday, March 21, 2026

Claim that Copernicus knew of Aristarchus

 



“… with some reading and piecing together of some related bits of evidence,

and thinking about context, I’m now completely convinced Copernicus

did know of Aristarchus’s hypothesis, and that he deliberately withheld acknowledgement of the fact”.

 cosmiCave.org

  

Taken from: Setting the Record Straight: How Copernicus Concealed His Debt to Aristarchus—and Claimed an Intellectual Priority He Knew Wasn’t His – cosmiCave.org

 

Setting the Record Straight: How Copernicus Concealed His Debt to Aristarchus—and Claimed an Intellectual Priority He Knew Wasn’t His

 

There’s a prevailing myth in the history of science that Copernicus rediscovered heliocentrism independently—and that he had no real connection to Aristarchus, whose own theory was vague, obscure, and uninfluential. This essay dismantles that myth.

 

While researching this previous essay, trying to get all my facts straight with reference to primary sources, I found several interconnected things that are badly misunderstood at the present—things I previously thought were true, but which closer inspection showed to be false.

 

I used to think, as it’s the common consensus, that it was unclear whether Nicolaus Copernicus had known Aristarchus of Samos proposed a heliocentric (Sun-centred) model similar to his in the third century BCE—and that he probably didn’t since he never mentioned it. But with some reading and piecing together of some related bits of evidence, and thinking about context, I’m now completely convinced Copernicus did know of Aristarchus’s hypothesis, and that he deliberately withheld acknowledgement of the fact.

 

Another thing I’ve always understood to be true, which is written all over the place, is that one of the main obstacles that stood against Aristarchus’s theory being accepted in his time was the fact that we don’t see any stellar parallax in nearby stars as Earth orbits the Sun. But this, too, turns out to be an anachronistic myth—and one that’s pretty clear to see when all the relevant information is pulled together. It’s also linked to a lot of inaccuracy related to interpreting Copernicus and Aristarchus, and in a way I think it has indirectly influenced the false consensus that Copernicus likely wasn’t aware of Aristarchus’s hypothesis.

 

Consequently, while this essay’s primary purpose is to explain that Copernicus was, without a doubt, aware of Aristarchus’s heliocentric theory—in fact, he was every bit as aware of its details as anyone today is—it will also clarify some other things that people seem to commonly misunderstand, such as the anachronistic parallax myth.

 

I want to be clear: I’m not claiming Copernicus originally got the heliocentric idea directly from Aristarchus. That is too strong a claim, and I don’t think we can ever know one way or the other. Aristarchus likely became known to Copernicus at some influential point during his studies in Italy, but whether that was before or after Copernicus had thought of the basic concept, and realised for himself that e.g. retrograde motion could be explained through parallax rather than by actual backwards motion as the planets looped around a fixed Earth, we cannot know. It is reasonable to think that Copernicus realised the latter on his own, though he did not keep a detailed diary as he worked through his ideas, so we can’t confirm this.

 

So we can’t know precisely when in his early years Copernicus became aware of Aristarchus, nor how influential the Ancient Greek had been in shaping Copernicus’s theory.

 

In fact, very little is even known of the details of Aristarchus’s model, so it really can’t have been too influential. Copernicus must have come to realise much of what makes the concept so compelling on his own.

 

But still, this does not change the fact that Copernicus did Aristarchus dirty.

 

He knew Aristarchus had proposed a heliocentric theory in the third century BCE. He knew Aristarchus was a serious astronomer, e.g. the first to estimate the Sun’s distance through careful measurement and detailed geometric reasoning. And Copernicus deliberately withheld that information from both Commentariolus and De revolutionibus orbium coelestium—as he was absolutely aware of his predecessor’s theory already when he wrote his early draft.

 

This much is true. And it is also true that Copernicus made this omission so he could claim priority to the idea that the Earth orbits the Sun.

 

While he did not explicitly say this—how could he, as he omitted his knowledge of Aristarchus entirely?—he did so implicitly, by excluding Aristarchus from the broader group of Ancient geokineticists he listed in support of his proposal that the Earth moves, which he followed by explicitly claiming that he had come to the idea that Earth is orbiting the Sun on his own, “by long and intense study.”

 

Leaving Aristarchus out of that sequence worked well rhetorically, as he could cite precedent for the proposal that the Earth spins daily, or that it moves about a central fire in an abstract, metaphorical sense. And from there, Copernicus could frame himself as taking those ideas to the next level with a novel hypothesis that this moving Earth actually orbits the Sun. 

 

The omission of Aristarchus provided a clean and compelling narrative within the opening argument for his life’s work, and it’s understandable that he did it.

 

The alternative would be to frame the whole theory as something that had basically been thought of and explored in Ancient times, and eventually rejected by those who Copernicus and everyone around him thought of as intellectual authorities, leaving him to argue that while they’d eventually abandoned the idea he nevertheless proposed circling back to.

 

This more honest approach would have placed Copernicus at a much greater disadvantage, making him far more easily dismissed on superficial grounds, which he needed to avoid. “Check out my theory! Someone already thought of it 1800 years ago and the astronomers at the time eventually dismissed it as an abstract peculiarity that’s nevertheless absurd. But for the past several decades I’ve worked through the details anyway and I think I can make it work, never minding the absurdity which you’re likely to find insane.”

 

Copernicus actually acknowledged in De revolutionibus, that the idea that Earth was rapidly spinning and orbiting as he proposed seemed “absurd,” “insane,” and “almost against common sense.” To admit this, and to also say that people had nevertheless already considered the hypothesis and discarded it would have considerably heightened his disadvantage.

 

So, instead, he omitted the detail and framed the idea as novel

 

“For a long time, then, I reflected on this confusion in the astronomical traditions concerning the derivation of the motions of the universe’s spheres … having obtained the opportunity from these sources, I too began to consider the mobility of the earth. And even though the idea seemed absurd, nevertheless I knew that others before me had been granted the freedom to imagine any circles whatever for the purpose of explaining the heavenly phenomena.

 

Hence I thought that I too would be readily permitted to ascertain whether explanations sounder than those of my predecessors could be found for the revolution of the celestial spheres on the assumption of some motion of the earth … [and] by long and intense study I finally found that if the motions of the other planets are correlated with the orbiting of the earth …”.

 

So you see: this narrative does not work if Copernicus acknowledges that Aristarchus had actually beaten him to the claim, and that Copernicus was reviving something that had been rejected almost two thousand years ago, by those who had the full original manuscript to work with. Omitting Aristarchus allowed Copernicus to cast himself as the innovator rather than revivalist—to frame heliocentrism as a novel hypothesis rather than a return to an abandoned theory.

 

Copernicus’s source on Aristrarchus’s theory—Archimedes’ Sand-Reckoner—was also not widely known when De revolutionibus was published in 1543. It was first printed (purely coincidentally?) in a Latin edition of Archimedes’ works in 1544. Copernicus was therefore not compelled to cite his source, as his knowledge of the former work was relatively private and not expected.

 

Anyway, the above explains roughly why I think Copernicus cut Aristarchus out.

 

This is my reasoning based on Copernicus’s rhetorical framing of his proposal, and a suspicion that he was not acting purely in bad faith. Not necessarily because he wanted all the glory to himself, though there may have been some of that, but mainly because it would have been a disadvantage to do so.

 

But this essay is not about my own, personal speculative opinion. And I will not go so far as to demonstrate why Copernicus did what he did, nor how large a debt Copernicus owed to Aristarchus nor how much of his realisation about the compelling aspects of heliocentrism was original insight. I don’t think we’ll ever find more direct evidence to help in ascertaining these things.

 

What I will show, as I said above, is that Copernicus clearly, unquestionably did read Archimedes’ Sand-Reckoner sometime before 1514, when he circulated Commentariolus to his friends and colleagues—and that he therefore knew Aristarchus proposed a heliocentric theory before him. That he therefore deliberately withheld the reference in De revolutionibus. And that twentieth century Copernicus historians wrongly concluded he did not.

 

In the process, I’ll also set the record straight on a related point—a common anachronistic reading of the evidence that was held against heliocentrism, both in Ancient times and in Copernicus’s day. The idea that the Ancients cited an apparent asbsence of parallax shift in the nearest stars due to Earth’s hypothesised orbit about the Sun, that they favoured geocentrism in part because of this, and that Copernicus hedged against this criticism, is a complete falsehood that is almost universally accepted at present.

 

This anachronistic parallax argument against heliocentrism was not noted until after Copernicus died—and in fact it was not even applicable to either his theory or Aristarchus’s. The fact that it is commonly thought to have concerned Copernicus and Aristarchus’s contemporaries is unfortunate for several reasons: 

 

  • it represents a fundamental misunderstanding of an Ancient worldview that persisted unchallenged until nearly the end of the sixteenth century, which Copernicus never dreamed of questioning; 
  • it therefore obscures the debt we all owe to one of the most influential innovations in the history of cosmology, to a person (Thomas Digges) whose name is hardly ever even mentioned in the history books—and certainly not as a key player in the Scientific Revolution—who frankly deserves to be celebrated as the father of modern cosmology, finally given his rightful place alongside Copernicus, Galileo, Kepler, and Newton;
  • it leads to anachronistic misreadings of both Ptolemy and Copernicus, when we fail to realise the notion of a parallax shift in nearby stars relative to those further away never could have crossed their minds; and,
  • it obscures a key piece of evidence that renders Copernicus’s obvious plagiarism of Archimedes unmistakable, along with the deliberateness of his omission of Aristarchus as his predecessor.

 

It’s an interesting and deeply illuminating historiographic reset, and I hope you enjoy reading. It’s far more than just a detail about intellectual credit. These false narratives that have been propagating for more than a century warp our entire understanding of cosmological progress, Ancient science’s sophistication, and even modern assumptions about scientific reasoning.

 

Given everything I’ve said above, I’ll work through the actual demonstration of claims as follows. I’m going to start with a recap of previous arguments that incorrectly concluded Copernicus was unaware of Aristarchus’s heliocentric theory, clarifying on their own terms how weak and flawed they are. I’ll then explain the anachronistic parallax argument, clarifying why it is an anachronism. With that context, we can then immediately clarify Archimedes’ reference to Aristarchus in the Sand-Reckoner—both, what his concerns were and what they were not. I’ll then also discuss both Ptolemy’s argument in Almagest Book I, Chapter 6 and Copernicus’s argument in De revolutionibus Book I, Chapter 6 (Copernicus deliberately paralleled the structure of Almagest as a rhetorical device in his work, so these chapters are similar), clearly establishing that neither was aware of the anachronistic parallax idea. Thus, we’ll clarify both, that Ptolemy was not arguing against heliocentrism on that ground—in fact, there is no evidence he entertained the heliocentric hypothesis at all in Almagest, as he never addressed it—and that Copernicus was not hedging against the anachronistic parallax argument in De revolutionibus—and again, there’s no evidence he ever even dreamed it was a problem he’d need to guard against—and in fact when we consider his actual worldview it’s clear the problem should never have crossed his mind. 

 

We’ll then loop back to the Sand-Reckoner, specifically focusing on Archimedes’ application of Aristarchus’s theory, what that application says and what it explicitly does not imply about the Ancient reasons it failed to attract a wider following. In my previous essay, I gave three reasons why Aristarchus’s theory faded into obscurity until it was revived by Copernicus, and this diagnosis clarifies that the anachronistic parallax argument was never one of them—that it was never even dreamed of until after 1576, when Digges proposed his radically different cosmological worldview, which we’ve all come to accept implicitly, and tend to project onto earlier thinkers.

 

Finally, having all these pieces in place, this analysis will close with the evidence that Copernicus lifted his fourth proposition in Commentariolus directly from Archimedes—that there is no other explanation for the specific formulation he chose, as he never would have come to that specific formulation on his own, he did not require it, he never made specific use of it, and in the end, in De revolutionibus he reverted to the less specific, mathematically imprecise argument that paralleled Ptolemy’s reasoning in the Almagest.

 

Previous Accounts by Science Historians

 

Copernicus’s Commentariolus was lost for more than 350 years. While he had shared copies privately with several friends and colleagues in 1514, those languished in private libraries. This first articulation of Copernicus’s heliocentric hypothesis was only rediscovered in 1878, by the historian Maximilian Curtze in Vienna. And it was first translated into English by Edward Rosen in 1939.

 

In 1942, Rudolf von Erhardt and Erika von Erhardt-Siebold published a sprawling article in the History of Science journal Isis, closing with a claim about “the almost certain acquaintance of Copernicus with the Sand-Reckoner.” In the article, this claim was buried at the end, and even there it was not well explained: The section is two paragraphs long, the point is made (without proper context) that Copernicus’s fourth postulate in Commentariolus is conspicuously similar in its construction to a passage from the Sand-Reckoner, and then the authors proceed to speculate—incorrectly!—that with this postulate Copernicus may have been guarding against the non-observability of stellar parallax due to Earth’s orbit. ….

 

 

 

In the context of all of this, and regarding the actual historicity of some of these famous astronomers and scientists, see my (Damien Mackey’s) articles:

 

Did the Greeks derive their Archimedes from Sargon II’s Akhimiti?

 

(8) Did the Greeks derive their Archimedes from Sargon II's Akhimiti?

 

Machiavelli in the name Achitophel, Galileo Galilei in the name Gamaliel

 

(8) Machiavelli in the name Achitophel, Galileo Galilei in the name Gamaliel