Would This Prove That God Exists? What Jesus's DNA Would Actually Look Like

What do you think the lab would find if Jesus’s DNA could be tested today?

Sit with the question for a moment before reading on.

The mother’s side is the easier of the two and comes first. The father’s side is where the question begins. If a modern ancestry-testing lab returned a report on Jesus, the kind that comes with a pie chart of “37% Italian, 12% Iranian, 8% Levantine” and a Y-chromosome haplogroup attached, what would you expect to see on the second line?

The piece commits to no answer of its own. The substantive material (Aquinas in 1265, the Quran in the seventh century, the Talmud in the third to sixth, the lab papers from the last forty years) sits inside each case where it becomes relevant.

What an Ancestry Test Measures

A modern ancestry-testing lab reads three things from a sample.

Mitochondrial DNA. The small genome inside the cell’s mitochondria, inherited only from the mother. No paternal mitochondria survive fertilisation. Your mitochondrial DNA matches your mother’s exactly, and her mother’s, and her mother’s, in an unbroken matrilineal chain back into deep prehistory.

The Y chromosome. The smaller of the two sex chromosomes, present only in males, inherited only from the father. Each branching point on the global Y phylogenetic tree corresponds to a real man who lived at a specific time, carried a specific point mutation, and passed it to a son.

The autosomes. The other twenty-two chromosomes, recombined in every generation from contributions by both parents. The “ancestry composition” pie chart on a consumer report is built from autosomal patterns: which alleles you carry, at what frequencies, compared with which reference populations.

Three slots. Mother’s line, father’s line, and the recombined mix. For any biologically conceived human male the three slots fill in cleanly and the lab assembles a report.

For Jesus, that is where the question begins.

Mary’s Half: The Easy Side

The mother’s contribution is the part nobody disagrees about. A first-century Galilean Jewish woman would carry mitochondrial DNA from a regional maternal lineage, almost certainly some subclade of haplogroups H, J, K, T, or U, the dominant maternal lineages of the Iron Age and Roman-period Levant. Her autosomal contribution would cluster with what modern population genetics calls the Levantine reference group: closest living relatives in modern Lebanese Christians, Druze, Samaritans, and Mizrahi Jews.

The continuity from Bronze Age Levant to today is well-documented. Marc Haber and his colleagues at the Wellcome Sanger Institute sequenced ancient Canaanites from Bronze Age Sidon and modeled present-day Lebanese as ninety-three percent Sidon Bronze Age plus seven percent Steppe Bronze Age (Haber et al., American Journal of Human Genetics 101, 274-282, 2017). Iosif Lazaridis and a team across several institutions sequenced forty-four ancient Near Easterners spanning roughly twelve thousand years and showed that Levantine farming populations descend from local Natufian hunter-gatherers (Lazaridis et al., Nature 536, 419-424, 2016).

So Mary’s half of Jesus’s DNA is, on every theological reading, ordinary first-century Galilean. The atheist, the Catholic, the Eastern Orthodox, the Muslim, and the Jew all expect the same result on the maternal side. The question was never about Mum.

A Note Before the Cases: DNA Is a Document

There is no such thing as “generic local DNA.” A lab result like “Levantine male, J-P58” describes a document. Each point mutation along the Y chromosome’s history corresponds to a real man who lived at a specific time, carried that specific mutation, and had a son. A J-P58 chromosome encodes the patrilineal record of a chain of ancestors stretching back roughly three thousand years (Hammer et al., Human Genetics 126, 707-717, 2009).

If God produced a Y chromosome for Jesus that reads as J-P58, the chromosome would be encoding a paternal lineage that, on the Christian and Islamic theological accounts, did not exist. Each mutation would be a fictitious ancestor’s claim to existence. The cellular machinery would read a document about people who never lived.

A Christian apologist could push back here. Perhaps God copied the exact Y chromosome of King David and gave it to Jesus, in fulfilment of the prophecy that the Messiah be of David’s seed. The result would still record ancestors who lived a thousand years before the conception and through whose bodies Jesus did not biologically descend, and the divine actor would still be the source of the chromosome instead of a biological father. The objection sharpens: forgery or duplication, the document records a lineage the body did not run through.

A second apologist move appeals to divine accommodation. God works within human frameworks of understanding, the argument goes, and producing a chromosome that reads as an ordinary human lineage is part of meeting humans where they are. The question raised here is whether creating a false historical record, even for a purpose, differs meaningfully from deception.

The same logic applies, distributed across the genome, on the autosomal side. The reason a consumer ancestry test can identify a “Levantine cluster” is that specific historical events produced specific patterns of allele frequencies in that region’s populations. If Jesus’s autosomal DNA matched the cluster perfectly, it would be because the alleles fit a demographic history that, on the theological account, did not include him.

Hold this in mind for the cases below. The chromosome the lab reports is always a specific document. The question is what the document records.

One philosophical assumption is doing all the work here. The thought experiment binds theology to biology and treats the lab’s answer as evidence about the doctrine. A believer can always step outside that frame, since a miracle by definition operates outside ordinary biological mechanism, and a result that contradicts the doctrine biologically does not have to contradict the doctrine theologically. The test only has bite if you assume that reality is biologically consistent even where the divine acts.

The Five Cases

Below are the five reports the lab could plausibly return.

Case 1: The lab returns DNA from a first-century population in plausible contact with Galilee

The simplest result. The lab returns Y haplogroup J1 or J2, autosomal matches closest to modern Lebanese Christians, Druze, Samaritans, and Mizrahi Jews. A perfectly ordinary first-century Levantine Jewish male profile. Or perhaps a Roman soldier’s profile, with admixture from any of the regions Roman legions recruited from. Or a Greek trader, an Anatolian, an Egyptian, a Nabataean. The first-century Levant was a meeting point for a dozen population streams.

For the historical-critical reader. This is the expected result. Joseph, or some other first-century man, was the biological father. The virgin birth was a theological claim made about an ordinary biological birth. There is a sharper version of the position worth naming. Paul’s letters, written in the 50s CE, do not mention a virgin birth. Mark, the earliest gospel (around 70 CE), has no nativity story at all. Only Matthew and Luke (around 80-90 CE) include the virgin birth, and the two genealogies they offer for Joseph contradict each other on most names between David and Joseph (Matthew traces through Solomon, Luke through Nathan, both supposedly along Joseph’s line). On the standard historical-critical reading the virgin birth is a late accretion that the earliest Christian sources do not know. The second-century philosopher Celsus, in True Discourse (around 178 CE, preserved through Origen’s later refutation), recorded a Jewish polemic that Jesus’s father was a Roman soldier called Panthera; the medieval Toledot Yeshu repeats variants. Either of those, or the simpler Joseph hypothesis, fits Case 1. The historical-critical reader’s question closes before it opens.

For the Christian. This is the result most Christians expect without thinking, and it forces the deepest reinterpretation of the doctrine. The virgin birth either has to be read as theological language that does not bind biology (a move some liberal Protestants have already made), or accepted alongside a forged biographical document encoded into nucleotides. The forgery reading sits uncomfortably with the classical monotheist commitment that God does not deceive. The Hebrew prophets required the Messiah to be of the seed of David (2 Samuel 7:12-14, Psalm 89:3-4, Jeremiah 23:5). Both gospel genealogies, Matthew 1:1-16 through David and Solomon and Luke 3:23-38 through David and Nathan, trace through Joseph. If Joseph is not biological, the Davidic claim is legal-only. The conservative Christian apologetic notes that ancient Near Eastern law treated legal adoption as binding for inheritance, and that Joseph’s legal paternity (naming Jesus and raising him as his own) would have been sufficient under that framework for the Davidic title to pass. The medieval Jewish polemic rejected the move on the grounds that messianic descent required biological seed of David specifically, an argument the Jeconiah curse made sharper still.

The Jeconiah curse. A sharper version of the same problem sits inside the Hebrew Bible. Jeremiah 22:30, addressing the Davidic king Jeconiah before the Babylonian exile, says (King James Version):

Thus saith the LORD, Write ye this man childless, a man that shall not prosper in his days: for no man of his seed shall prosper, sitting upon the throne of David, and ruling any more in Judah.

Matthew’s genealogy in chapter 1, verses 11 and 12, drops Jeconiah straight into Joseph’s family line. The early rabbis had a way around the curse. They read it as lifted when Jeconiah repented during the Babylonian exile. The Talmud, in Sanhedrin 37b-38a, builds the case through a small Hebrew wordplay: Jeconiah’s son was named Shealtiel, and the rabbis read the name as “God consulted his court and freed him from the oath.” For them, the curse was over.

Medieval Jewish writers then turned the same curse against the Christians. Either Joseph was the biological father, in which case Jesus inherits the curse and cannot sit on David’s throne, or Joseph was not the father, in which case the whole Davidic claim through him collapses. The argument circulates in the medieval Jewish polemical literature of the disputation period (the Nizzahon Vetus and related anti-Christian responses) and is in the same key as the arguments Nahmanides put to a Christian opponent at the Barcelona Disputation of 1263. Most Christians have not been asked to choose, because nobody has run the test.

The shape of the objection is older than the gospels. The genetic vocabulary is the most recent layer of an old conversation.

For the Muslim. Quran 3:59 explicitly parallels Jesus’s creation to Adam’s:

Indeed, the example of Jesus in the sight of Allah is like that of Adam. He created him from dust, then said to him, “Be!” And he was! (Sahih International)

Tafsir Ibn Kathir reads this as parallel miraculous creation by direct divine command. Case 1 contradicts the verse on a strict reading, since a J1 or J2 Y chromosome implies a human father in the ordinary patrilineal sense. The verse admits three readings under Case 1. A metaphorical reading, allowed by some modernist Muslim thinkers, treats the verse as theological language that does not bind biology. An omnipotence-of-outcome reading treats Kun fa-yakun (“Be, and it is”) as giving Allah the power to create any Y chromosome by direct command, including one indistinguishable from Joseph’s, which preserves the verse without binding it to a particular biology. A literal reading treats Case 1 as incompatible with the verse. Mainstream Muslim scholarship has not, as far as the published literature shows, worked through which reading the verse requires.

For the Jewish reader. Case 1 is the expected result, and it returns the messianic question to its older form. The Jeconiah-curse problem is real if Joseph is biological. If the curse is treated as resolved (the Talmudic reading), Jesus could in principle have been a Davidic descendant, but other messianic criteria remain unmet (he did not establish a political kingdom, did not gather the exiles, did not bring universal peace). The genetic test settles only one branch of a multi-branch question.

Three readings simplified above. None of the case treatments is the only reading available within its tradition. Some Christian thinkers have argued that Mary herself was Davidic, which would preserve the descent biologically through the maternal side even with no human father. Some Muslim thinkers would read 3:59 more figuratively. Some Jewish thinkers hold the Jeconiah resolution as final. Case 1 forces commitments that have been deferred without foreclosing every possible response.

Case 2: The lab returns DNA from a population that could not have been in plausible first-century contact with Galilee

The result returns as ordinary human DNA from a pre-Columbian American lineage, an Australian Aboriginal one, a Polynesian people of the deep Pacific, or some other population that had no plausible land or sea route to the eastern Mediterranean in the first century.

Case 2 mostly sharpens Case 1’s forgery problem. The historical-critical reader’s confidence drops, since the naturalistic explanations are thin. The Christian faces a forgery reading where the forged lineage points at a population with no narrative role in the Christian story. The Muslim reading of 3:59 still asks for a Y that looks like nothing on the human tree; a real population in an impossible location does not satisfy that prediction. The Jewish messianic frame has no category for descent from a population unknown to the prophets.

The one philosophical wrinkle is the migration possibility. Maybe a Phoenician trader reached the Americas, or a Polynesian voyager reached the Levant, and the archaeology has not turned it up yet. The result then slides from “definitively supernatural” toward “definitively rewriting human migration.” The difference between those two outcomes might be smaller than it sounds.

Case 3: The lab returns DNA that matches no human population at all

The result returns as a Y chromosome that does not sit on the human phylogenetic tree, with conserved regions intact (so the cellular machinery can use it: SRY for sex determination, AZF for spermatogenesis, the centromere, the telomeres) but variable regions matching nothing in any extant or extinct human population. Possibly resembling a hypothetical pre-divergence Y, possibly something more strange.

For the historical-critical reader. The most extraordinary single finding in the history of genetics. The naturalistic options (parthenogenetic origin with miraculous SRY, lab contamination, an ancient Y from an unknown branch of hominins) all have their own problems. A Y chromosome with sequences matching no extant or extinct human group, no archaic hominin (Neanderthal, Denisovan), and no close primate, would be the most difficult result for biology to contain within current naturalistic frameworks. The honest historical-critical position would settle on “currently unexplained.” Reaching for “supernatural” is a stronger claim than the result would licence.

For the Christian. A reading that bypasses the Davidic and forgery problems by removing the human paternal lineage altogether. There is no chain of fictitious ancestors to forge, and no Joseph through whom the Davidic genealogy has to run. Some early Christians held a related view. Arius of Alexandria, condemned at the First Council of Nicaea in 325, taught that the Son was created by the Father and had a beginning in time. An Arian framework would absorb Case 3 with no contortion, since Jesus would be a special creature brought into being by direct divine action. The post-Chalcedonian framework has more work to do. Chalcedon in 451 declared Jesus homoousios (of the same substance) with us according to his humanity, and a Y chromosome created from nothing for the Incarnation complicates that claim, since the genome would not biologically descend from any human lineage.

For the Muslim. What Quran 3:59 predicts taken seriously as a biology claim. The verse parallels Jesus’s creation to Adam’s, and a Y chromosome with conserved deep-mammalian biology in the variable regions outside the human tree is what the Adam parallel implies if the verse is read as a biology claim. Whether 3:59 is meant as biology or as metaphor is itself contested in classical and modern Muslim commentary. No major Muslim scientist has worked the prediction out in modern genetic terms.

For the Jewish reader. A problem of a different kind. Jewish messianic expectation has always been more this-worldly than the Christian. A divine Y chromosome doesn’t fit the Jewish messianic frame, which expects a political king of David’s line, biologically Davidic, who establishes peace and ingathers the exiles. Case 3 satisfies neither the genealogical requirement nor the political one.

One question worth asking. Case 3 is among the most improbable of the five in the strict statistical sense. A Y chromosome that doesn’t match anything is one specific result among billions. Any reader, of any persuasion, can ask: is this the expected result because it is wanted, or because the evidence points there? The honest answer is open.

Case 4: No Y chromosome at all, XX karyotype with miraculously activated SRY

The result returns as a chromosomally female karyotype with the SRY gene translocated onto an X chromosome, producing a male phenotype despite an XX karyotype. Mary as the sole genetic source. The Spirit as the activator that flips on male development.

The plain version first. Before any tradition’s reading, it helps to be clear about what an XX-male body looks like. It looks like a man. People born with XX-male syndrome develop male anatomy, grow up identifying and living as men, and are typically diagnosed only when they discover they are infertile or get a karyotype for an unrelated reason. From the outside they are indistinguishable from any other man. The chromosome lab is the only place the condition shows up. So Case 4 means a Jesus who looked male, walked through Galilee as a man, was crucified as a man. The lab report would have shown forty-six XX where a doctor would normally expect forty-six XY. The depictions in art, the gospel descriptions, the iconographic tradition all stand: those track phenotype, and the phenotype is male.

For the historical-critical reader. Implausible but not theologically loaded. XX-male syndrome is a known rare condition, occurring in roughly one in twenty thousand male births by ordinary natural mechanisms (paternal SRY translocation during the father’s sperm production). For Jesus, with no biological father, the SRY would have had to arrive by some other route. The historical-critical reading would treat the result as a fluke or as evidence that Jesus had an unusual biology, not as evidence for the supernatural per se.

For the Christian, especially the Catholic. This is what Aquinas’s Summa Theologica III, Question 31, Article 4 predicts when you translate his theology into modern biology. Aquinas asked, around 1272, “whether the matter of Christ’s body should have been taken from a woman” (utrum materia corporis Christi debuit assumi de muliere). His answer in the respondeo (Fathers of the English Dominican Province translation, 1947):

Although the Son of God could have taken flesh from whatever matter He willed, it was nevertheless most becoming that He should take flesh from a woman.

In the wider treatment that continues through Question 32, Aquinas distinguishes the source of the bodily material from the cause of the conception. The matter (materia) of Christ’s body is taken entirely from Mary. The Holy Spirit is the active or efficient cause (virtus Spiritus Sancti) of the conception, but does not supply biological material. In modern biology, that translates almost exactly: parthenogenesis from Mary’s egg, with a miraculous activation step. The result, in modern biology, is two copies of an X chromosome and no Y. Jesus would be an XX-male.

There is one biological caveat. SRY, the gene that triggers male development, lives on the Y chromosome. If Mary contributes only X chromosomes, there is no SRY in her genome to activate. The divine cause has to synthesise the SRY sequence (about 828 base pairs of genomic DNA, encoding a 204-amino-acid protein) and place it on one of the X chromosomes. The “document” problem from earlier doesn’t quite return. SRY is a functional gene; it does not encode the historical patrilineal record that a full Y chromosome encodes. A wild-type SRY synthesised by the divine cause would code for the male-development switch without fabricating any ancestors. Of the five cases, Case 4 requires the smallest divine genetic intervention.

The art and the iconography are unaffected. Jesus would have looked male and the depictions would have been accurate as records of his appearance. The shift is at the chromosomal level and in the doctrinal claims that rest on it. The Catholic argument for an all-male priesthood, in particular, has often appealed to Jesus’s maleness and his choice of male apostles. A Case 4 result would force a more careful definition of what “male” is doing in that argument: phenotype and identity (which Jesus would still have had), or chromosomes (which he would not). The Christian biologist Edward L. Kessel proposed a related mechanism in 1983 (“A Proposed Biological Interpretation of The Virgin Birth,” Journal of the American Scientific Affiliation 35(3), 129-136, the journal later renamed Perspectives on Science and Christian Faith): parthenogenesis from Mary’s egg followed by natural sex reversal, producing a chromosomally female (XX) Jesus with a male phenotype. The geneticist R. J. Berry, long associated with Christians in Science, sharpened the reading in 1996 (“The Virgin Birth of Christ,” Science and Christian Belief 8(2), 101-110), bringing modern genetics to bear on parthenogenesis and the XX-male / SRY-translocation mechanism. The Cambridge book Jesus and the Genome (Peterson, Pawl & Brammell, 2024) revisits the question with the benefit of forty more years of genomics. The Catholic doctrinal commitment is more comfortable with the XX-male reading than most Catholics have been told.

For the Muslim. Incompatible with the Adam parallel. Adam in Islamic tradition was fully male, created from dust, not from the doubled material of any other human. A doubled-Mary genome with translocated SRY does not fit the Adamic creation pattern. Case 4 is not what Quran 3:59 predicts.

For the Jewish reader. With no biological father, the Davidic line through Joseph is gone. The Mary-as-Davidic apologetic exists. Conservative Christian readers treat Luke 3:23-38 as Mary’s lineage by reading Heli as Mary’s father and Joseph as his son-in-law, although the Greek text says “Joseph, son of Heli” without qualification. On that reading the Davidic descent is preserved through Mary, but the political-messianic criteria remain unmet.

For a modern reader thinking about gender. Worth sitting with. The most-worshipped figure in Western history would have a chromosomal karyotype most people would call female, in a body that looked, lived, and was treated as male. Modern medicine groups XX-male syndrome under Difference of Sex Development (DSD), a category of natural variations documented in human biology. The intersex reading sits inside the doctrine. Take Aquinas’s account of materia and the Spirit’s active cause seriously as biology, and an intersex outcome is what the doctrine predicts on its own terms. None of the church fathers anticipated this reading because the chromosomal vocabulary did not exist. Aquinas anticipated the structure of it without knowing what the structure implied. The institutional churches that have used Jesus’s “maleness” as a basis for excluding women from the priesthood would have to clarify which kind of maleness they meant: the social and phenotypic kind (which Jesus would still embody) or the chromosomal kind (which he would not).

What the biologists have written. Case 4 is the case the believing biologists have written about most directly (Kessel 1983, Berry 1996, the Cambridge volume in 2024), and it is the one that quietly translates Catholic doctrine into modern biology more closely than the doctrine’s own institutional formulations. The repeated independent landings on the XX-male mechanism might mean it is the true reading. They might also mean that several biologists worked through the same logic and reached the same answer because there are only so many biologically possible answers under the doctrine. A third possibility is worth flagging: Case 4 feels more complete than the others because biology and theology happen to align cleanly here, and the cleanest alignment is also the most tempting reading. Elegance is sometimes truth and sometimes preference. We do not have the body and never will.

Case 5: The lab returns DNA that matches no human population on either side, maternal or paternal

The most extreme result. The Y chromosome, the mitochondrial DNA, and the full autosomal pattern all return as sequences that do not match any extant or extinct human population. Mary did not contribute biological material in the ordinary sense.

For the historical-critical reader. The result is biologically impossible by any naturalistic mechanism. An egg has to come from somewhere, and mitochondrial DNA is inherited from the cell that contains it. If the mtDNA matches no human, either the egg was not Mary’s (which contradicts the gospel narrative), or the egg was created from scratch. The honest historical-critical position would have to accept that the question has moved outside what biology can explain.

For the Christian. Case 5 vindicates a very old and mostly suppressed reading. The early Gnostic Christians, particularly the Valentinians, taught that Jesus passed through Mary “as water through a pipe” and was not made of her flesh. Tertullian condemned this view in De Carne Christi around 206 CE precisely because it threatened the doctrine of the Incarnation. A Case 5 result would mean the Gnostics were right and Tertullian was wrong: Mary was a vessel, not a source. The Catholic title Theotokos (God-bearer), defended at the Council of Ephesus in 431, would have to be rethought, since Mary would not have biologically borne anyone in the ordinary sense. Aquinas’s Q31 A4, which said the matter of Christ’s body came entirely from Mary, would be falsified.

For the Muslim. The Adam parallel of Quran 3:59 is fully satisfied. Adam had no mother and no father, and Case 5 makes Jesus parallel in both directions. Mary’s role in Surah Maryam (19) would have to be read as a sign attached to the moment of birth, with no claim of biological maternity attached. Some Islamic readings could accept this; others could not.

For the Jewish reader. Both biological lines are gone. There is no genetic descent from David through either parent, and whatever Jesus was on a Case 5 result, he was not what Jewish messianic expectation was looking for.

Test the test first. Two parents’ worth of DNA both matching nothing is a higher hurdle than one. The first thing every biologist would do is check for contamination or methodological artifact. Even after that, “real” would mean only that no one can yet explain it.

Who Has Tried to Answer

Here are five substantive engagements with the biology question that have been found in print, in chronological order. The list may not be complete.

• Edward L. Kessel (1983). “A Proposed Biological Interpretation of The Virgin Birth,” Journal of the American Scientific Affiliation 35(3), 129-136. (The journal was renamed Perspectives on Science and Christian Faith in the early 1990s.) Kessel was a Christian biologist working in the orbit of the American Scientific Affiliation. The paper proposes parthenogenesis followed by natural sex reversal: a chromosomally female (XX) Jesus presenting a male phenotype. The originating modern paper.
• R. J. Berry (1996). “The Virgin Birth of Christ,” Science and Christian Belief 8(2), 101-110. Berry was Professor of Genetics at University College London (1974-2000) and was long associated with Christians in Science (President 1993-1995). He sharpened Kessel’s reading and brought modern genetics to bear on parthenogenesis and the XX-male / SRY-translocation mechanism.
• M. Kemal Irmak (2016). “Theoretical Postulation of the Embryological Basis of the Virgin Birth and Role of Embryonic Stem Cells Localized Out of the Embryo,” chapter in Human Fetal Growth and Development: First and Second Trimesters, edited by Niranjan Bhattacharya and Phillip G. Stubblefield (Springer, 2016). DOI 10.1007/978-3-319-14874-8_16. Irmak is Professor of Histology and Embryology at Gulhane Military Medical Academy in Ankara, a Turkish Muslim scientist. His proposal is unusual: that Mary herself was a 46,XX/46,XY chimera with both ovary and testis, and that fertilisation could occur through a vacuum effect in the fallopian tube. The hypothesis has been criticised in popular science press as fringe, and Irmak’s other work (including a paper proposing that human souls interact with the body via dark matter) places him at the speculative edge of his field. The chapter is in print in a peer-reviewed Springer book and counts as an engagement.
• Trent Dee Stephens (2022). The Immortal Messiah: The Physiology of Resurrected Beings, Cedar Fort. Stephens is a developmental biologist who taught human embryology at Idaho State University for around three decades, and a member of The Church of Jesus Christ of Latter-day Saints. The book treats the chromosome question of the virgin birth at substantive length, arguing against parthenogenesis (which would yield a female) and considering several alternative mechanisms. Not a journal article, but a book by a believing biologist directly on the question.
• Michael L. Peterson, Timothy J. Pawl, and Ben F. Brammell (2024). Jesus and the Genome: The Intersection of Christology and Biology, Cambridge University Press. Peterson is a philosopher of religion at Asbury Theological Seminary, Pawl is a Catholic analytic philosopher at the University of St Thomas in St Paul, and Brammell is Professor of Biology at Asbury University working in environmental DNA and molecular ecology. The book is the most established academic treatment of this question in print. Its third chapter, “The Doctrine of the Incarnation,” addresses the virgin birth in light of the genome directly. Cambridge University Press is the most prestigious academic publisher in the field. This is the work the question deserves to have always had, and it arrived in 2024.

The volume is small and the distribution is unusual. Two are by mainstream Protestant biologists (Kessel, Berry) writing in the moment when the genome was first becoming computable. One is a Turkish Muslim embryologist whose other work pushes well past the orthodox edge. One is a Latter-day Saint biologist writing for a non-academic audience. One is a 2024 Cambridge book by a team that includes a Catholic philosopher alongside Protestant theologians. None of the central cohort of believing biologists most readers might name (Francis Collins, Kenneth Miller, John Polkinghorne, Simon Conway Morris, Alister McGrath, Joshua Swamidass, Denis Alexander) has published a substantive engagement with what Jesus’s hypothetical genome would contain.

The question has been answered occasionally, not frequently. Most of the answers come from outside the central evangelical-and-mainline-Protestant cohort that does the most public work in science-and-religion today. The 2024 Cambridge book is the first signal that this might be changing.

What the Relics Cannot Tell Us

The relic record is supposed to carry blood or tissue from Christ, and parts of it have been tested over the past forty years. The honest record is thin. Three independent labs carbon-dated the Shroud of Turin to AD 1260-1390 (Damon et al., Nature 1989). Casabianca and colleagues challenged that result in Archaeometry (2019) on statistical grounds when the original raw data finally became public in 2017, and De Caro and colleagues challenged it in Heritage (2022) on a novel X-ray dating method. Neither paper has overturned the medieval reading. Barcaccia and colleagues recovered DNA from the Shroud (Scientific Reports 2015) and found a multi-century mixture of fourteen mitochondrial haplogroups belonging to people of many origins who handled the cloth, not Jesus. The Sudarium of Oviedo’s AB blood claim sits in non-peer-reviewed conference proceedings. Linoli’s 1971 Lanciano myocardium study was single-investigator with 1970s ABO methodology and no DNA work, with no independent re-analysis in the half-century since. The Sokółka and Buenos Aires Eucharistic samples never reached peer review.

The body will not be found. The test will not be run. The lab report exists only as a thought experiment, and the thought experiment has already done its work.

Each reader holding the question has to admit something about the position they walked in with. The materialist gets the expected result in Case 1 and has to confront something biologically unexplainable in any of the other four. The Christian who accepts Case 1 has to face the Jeconiah objection that the rabbis raised at Barcelona in 1263, which sequencing only sharpens. The Christian who hopes for one of the other four cases has to choose between a forged biographical record and a Gnostic reading the church spent centuries trying to bury. The Muslim has to decide whether Quran 3:59 was always a biological claim or always a metaphorical one. The Jewish reader can look at all five reports and find that only Case 1 preserves the genealogical possibility, and even there the political-messianic criteria the prophets wrote down remain unmet.

The test would reveal, on any of the five outcomes, the framework each reader brought to it. The DNA does not arbitrate between frameworks; it exposes them. The question of what counts as proof of God is older than DNA, and would not be settled by it.

Sources

Primary theological and scriptural texts:

• Thomas Aquinas, Summa Theologica, Tertia Pars, Quaestio 31, Articulus 4; Quaestio 32 (English: Fathers of the English Dominican Province, Benziger Bros., 1947)
• Quran 3:59 and Surah Maryam (Quran 19), in the Sahih International, Pickthall, and Yusuf Ali translations
• Tafsir Ibn Kathir on Quran 3:59
• Hebrew Bible: 2 Samuel 7:12-14; Psalm 89:3-4; Jeremiah 22:30; Jeremiah 23:5
• Gospel genealogies: Matthew 1:1-16; Luke 3:23-38
• Bavli Sanhedrin 37b-38a; Vayikra Rabbah 19:6 (Sefaria edition)
• Tertullian, De Carne Christi (c. 203-206 CE)

Polemical and disputational sources:

• Origen, Contra Celsum (c. 248 CE), preserving fragments of Celsus, True Discourse (c. 178 CE)
• Toledot Yeshu (medieval Jewish counter-narrative, multiple recensions)
• Nizzahon Vetus (13th-14th c.) and related medieval Jewish polemical literature
• Records of the Barcelona Disputation, 1263 (Ramban / Nahmanides)
• Council of Ephesus, 431 CE

Genetics and population genetics:

• Hammer, M. F. et al., “Extended Y chromosome haplotypes resolve multiple and unique lineages of the Jewish priesthood,” Human Genetics 126(5), 707-717 (2009)
• Lazaridis, I. et al., “Genomic insights into the origin of farming in the ancient Near East,” Nature 536, 419-424 (2016)
• Haber, M. et al., “Continuity and Admixture in the Last Five Millennia of Levantine History,” American Journal of Human Genetics 101(2), 274-282 (2017)

Relic studies:

• Damon, P. E. et al., “Radiocarbon dating of the Shroud of Turin,” Nature 337, 611-615 (1989)
• Casabianca, T. et al., “Radiocarbon Dating of the Turin Shroud: New Evidence from Raw Data,” Archaeometry 61(5), 1223-1231 (2019)
• De Caro, L. et al., “X-ray Dating of a Turin Shroud’s Linen Sample,” Heritage 5(2), 860-870 (2022)
• Barcaccia, G. et al., “Uncovering the sources of DNA found on the Turin Shroud,” Scientific Reports 5, 14484 (2015)
• Linoli, E., “Ricerche istologiche, immunologiche e biochimiche sulla Carne e sul Sangue del miracolo eucaristico di Lanciano,” Quaderni Sclavo di Diagnostica Clinica e di Laboratorio 7(3), 661-674 (1971)

Believing-scientist engagements with virgin-birth biology:

• Kessel, Edward L., “A Proposed Biological Interpretation of The Virgin Birth,” Perspectives on Science and Christian Faith 35(3), 129-136 (1983)
• Berry, R. J., “The Virgin Birth of Christ,” Science and Christian Belief 8(2), 101-110 (1996)
• Irmak, M. K., “Theoretical Postulation of the Embryological Basis of the Virgin Birth and Role of Embryonic Stem Cells Localized Out of the Embryo,” chapter in Human Fetal Growth and Development: First and Second Trimesters, eds. Bhattacharya & Stubblefield (Springer, 2016), DOI 10.1007/978-3-319-14874-8_16
• Stephens, Trent Dee, The Immortal Messiah (2022)
• Peterson, Michael L., Timothy J. Pawl, and Ben F. Brammell, Jesus and the Genome (Cambridge University Press, 2024)

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