Introduction
Professor Barrie A. Wilson, a historian of religion and scholar of early Christian origins at York University in Toronto, authored the book How Jesus Became Christian (2008) in which he asks a simple but profound question: How did the Jewish teacher Jesus of Nazareth become the figurehead of a religion quite different from what he appears to have taught? Macmillan Publishers+2News@York+2
Wilson’s thesis is bold: he argues that the movement led by Jesus and his earliest followers (which he calls the “Jesus Movement”) was overtaken by a quite different religious movement founded by Paul the Apostle (which he calls the “Christ Movement”), and that the shift was effectively a cover-up. Wikipedia+1
In what follows, I’ll summarise Wilson’s argument, sketch his evidence, discuss the implications he draws (including the roots of anti-Semitism), and offer some commentary on how the book has been received.
The Historical Setting
Wilson begins by reconstructing the world of the first century CE: a Jewish rabbi (Jesus) teaching in a Jewish context, living and dying within Judaism, proclaiming the coming “Kingdom of God” and interpreting Torah observance. Miami University Campus Store+1
He emphasises that Jesus was “thoroughly Jewish” — his mother was Jewish, he practiced Jewish religion, his earliest followers were Jewish. Barnes & Noble+1
He draws attention to the fact that only later did the figure of Jesus become cast in Hellenistic terms: a cosmic, divine “Christ” (Greek Christos) rather than purely a Jewish Messiah. The question is: how did that transformation occur? Macmillan Publishers+1
Two Movements: The Jesus Movement vs. The Christ Movement
A central piece of Wilson’s argument is that there were two distinct movements in the early decades after Jesus’s death:
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The Jesus Movement, centred in Jerusalem and led by Jesus’s brother James the Just, which remained Torah-observant and Jewish in its orientation; Miami University Campus Store+1
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The Christ Movement, spearheaded by Paul in the Jewish Diaspora (outside Palestine) which de-emphasised the Law (Torah) and promoted a universalist, Gentile-friendly religion of Christ. Macmillan Publishers+1
Wilson argues that Paul never met Jesus, yet his vision of Jesus as a divine saviour (a dying-rising figure) diverged significantly from the teachings of the historical Jesus and the movement in Jerusalem. News@York
He writes that the Book of Acts (which attempts to graft Paul and the Jerusalem movement together) is a piece of historical revisionism, attempting to smooth over the conflict between the two, and to make Paul appear more continuous with Jesus than he actually was. Wikipedia+1
The “Cover-Up” Thesis
Wilson labels his key claim the “Jesus Cover-Up Thesis”: the claim that the original religion of Jesus and his followers was replaced or overshadowed by Paul’s religion — effectively a different religion — and that the historical memory of Jesus’s own teachings was suppressed or transformed. Miami University Campus Store
In his outline, he posits three components:
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The religion that Jesus practised (and his followers followed) was distinct from the later Christian religion. Miami University Campus Store+1
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There was a shift from “Jesus” (the Jewish teacher) to “Christ” (the divine saviour) — a shift in focus from doctrine and practice to faith in the person of Christ. Macmillan Publishers+1
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This shift had consequences: the suppression of the Jewishness of Jesus, the sidelining of James’s movement, and here Wilson connects the roots of Christian anti-Semitism to this early conflict. Miami University Campus Store
Thus Wilson argues that Christianity as we know it is not strictly the continuation of Jesus’s own religion, but rather a new religion built upon and superseding it. He writes: “Jesus got up-staged by Paul.” Miami University Campus Store
Key Evidence and Argumentation
Wilson marshals several lines of evidence:
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He examines the early Christian texts (especially the letters of Paul and the Book of Acts) and highlights the tensions and discrepancies between Paul’s theology and the teachings attributed to Jesus in the Gospels. Wikipedia
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He emphasizes the cultural context: Hellenistic cosmopolitan environments, Gentile “God-fearers”, Jewish diaspora communities vs Palestine. That context made a universalist Christ-religion more appealing beyond the Jewish setting. News@York
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He explores how the Jerusalem movement (led by James) maintained Torah observance, whereas Paul’s movement did not emphasise observance of Jewish law. This divergence, he argues, points to fundamentally different religious identities. Macmillan Publishers+1
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He traces how the early Church gradually demonised Jewish leadership, re-interpreted Scripture, and developed anti-Jewish polemics — which he links to the long-term legacy of this shift. Miami University Campus Store
Wilson argues that the Book of Acts—likely composed around A.D. 100 or later—served to reconcile two movements that in fact had been in conflict. The narrative of reconciliation in Acts disguises how different they originally were. York University+1
Significance and Implications
If Wilson’s thesis is accepted (even partially), it has major implications:
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It challenges the notion of continuity between “Jesus” and “Christianity” in the sense of a seamless transition.
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It suggests that the religious system known as Christianity owes much of its shape to Paul’s theology rather than exclusively to the historical Jesus.
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It invites reconsideration of Jesus’s original teachings from a Jewish-Messianic perspective, rather than the later Christological framework.
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It connects the early Christian shift to long-standing issues, such as Christian anti-Judaism, by tracing their roots to this early conflict.
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For religious identity and inter-faith dialogue, it emphasises the Jewish context of Jesus and the fact that the early movement was Jewish rather than Gentile-Christian.
Scholarly Reception and Critique
Wilson’s book has attracted significant attention and some controversy. Some reviewers praise its clarity, readability, and provocative nature. For example, one endorsement calls it “beyond a doubt one of the most significant works on early Christianity to appear in decades.” Macmillan Publishers
However, there have also been criticisms. For example, Kirkus Reviews described it as “self-important, overly dramatic,” and noted that while Wilson raises valuable questions, his style may cater more to sensationalism than sober scholarship. Kirkus Reviews
Another review, in Times Higher Education, observed that while the project is laudable, Wilson’s presentation of “stereotyped dichotomies” between Judaism and Gentile Christianity may oversimplify complex historical realities. Times Higher Education (THE)
On online academic forums, some readers commend the interesting thesis but note that the book may not engage as deeply with the full breadth of specialist scholarship as more technical works. Reddit
In short: Wilson’s work is provocative and accessible to general readers; it may not satisfy all specialist academic expectations, but it has stimulated discussion about Christian origins.
Conclusion
In How Jesus Became Christian, Professor Barrie A. Wilson offers a bold re-interpretation of early Christian history. He argues that the religion of Jesus (and his earliest followers) was overtaken by a different religion founded by Paul; that the Christ figure emerged as a Hellenistic reinterpretation of the Jewish teacher; and that this transition involved a kind of “cover-up” of the original movement’s Jewishness.
Whether one accepts all of Wilson’s arguments or not, the book is valuable because it calls attention to the Jewish context of Jesus, the diversity of early Christianities, and the significant role of Paul and the Gentile mission in shaping what became orthodox Christianity. It invites readers — scholars, believers, and general readers alike — to re-think how the religion known as Christianity developed, and to ask what was lost or transformed along the way.
For those interested in the origins of Christianity, the intersection of Judaism and early Christian thought, and the question of how religious identity evolves, Wilson’s book is a stimulating read. It may not resolve all the debates, but it certainly adds an important perspective to the story.


