Introduction
One of the most influential claims in modern NT scholarship is that early Christianity was not a single unified movement but a collection of competing "Christianities" — each with its own theology, scriptures, and claim to represent the authentic teaching of Jesus. On this view, "orthodox" Christianity simply won — not because it was truer or earlier, but because it was backed by more institutional power. The canon is the winners' Bible.
This thesis has been championed by Walter Bauer, Helmut Koester, Elaine Pagels, and Bart Ehrman. Evaluating it fairly is essential for any student of the canon.
The Bauer Thesis
The thesis traces to Walter Bauer's 1934 book Orthodoxy and Heresy in Earliest Christianity. Bauer argued that in many regions, the earliest form of Christianity was not what later became "orthodoxy" but what later became "heresy." In Egypt, the earliest Christianity was Gnostic. In Edessa (Syria), it was Marcionite. "Orthodoxy" was a latecomer — a Roman-centered movement that gradually imposed its theology through institutional power.
Bauer's thesis was revived in the 1970s after the Nag Hammadi discovery, and Bart Ehrman's popular books — Lost Christianities and Lost Scriptures — brought it to a mass audience.
Evaluating the Evidence
The Bauer thesis contains a genuine insight wrapped in a significant overstatement. The insight: early Christianity was indeed more diverse than many assume. The overstatement: several major problems have been identified.
The Evidence Does Not Support Bauer's Regional Claims
Bauer's claim that earliest Egyptian Christianity was Gnostic rests on an argument from silence. But the earliest surviving evidence from Egypt — the biblical papyri (P52, P66, P75, P46) — are all copies of canonical texts. When the evidence appears, it supports orthodoxy, not heresy.
Orthodoxy Has Earlier Attestation Than Heresy
The earliest Christian documents — Paul's letters (AD 50s), the Synoptic Gospels (AD 60s–80s), John (AD 90s) — represent what became orthodox Christianity. The Gnostic texts are demonstrably later. The "heresies" are innovations against an existing tradition, not the original tradition itself.
"Diversity" Does Not Mean "Equally Valid"
Paul's letters already distinguish between the authentic gospel and distortions (Galatians 1:6–9). The apostolic generation had genuine diversity within a recognizable framework of shared convictions about God, Christ, salvation, and Scripture.
The most accurate picture is unity within diversity: a recognizable core of shared convictions — the death and resurrection of Jesus, the authority of the apostolic witness, the continuity of God's work in Israel with his work in Christ — combined with genuine diversity in emphasis and expression. The New Testament itself contains diverse theological voices (Paul, James, John, Hebrews) united by shared convictions about Jesus Christ.
The "Winners Write History" Claim
This claim has superficial plausibility but fails on several points:
First, the "losers" were not silenced. We possess extensive Gnostic literature — over fifty Nag Hammadi texts. The non-orthodox movements were argued against, and the arguments are preserved.
Second, orthodoxy did not have institutional power during the decisive period (2nd–3rd centuries). The church was a persecuted minority with no centralized administration. The consistency of the canonical core across Rome, Alexandria, Antioch, Carthage, and Lyon is evidence of genuine recognition, not coercion.
Third, the claim is unfalsifiable — it can absorb any evidence. An argument that can never be disproven is not a historical argument; it is a conspiracy theory.
Ehrman's Contribution
Bart Ehrman has introduced millions to questions previously confined to the academy. But his presentation consistently overstates the skeptical case. He presents diversity as if it undermines the canon, when the canon itself reflects diversity. He presents variants as undermining reliability, when most are trivial. He takes real scholarly observations and presents them in the most alarming possible light. Responsible engagement requires distinguishing his data (usually sound) from his interpretive framework (consistently maximalist).
When someone raises Ehrman's arguments, resist the urge to be dismissive. The most effective response is to affirm the data while offering a different framework: "Yes, early Christianity was diverse — and the New Testament reflects that diversity. Yes, there are textual variants — and textual criticism enables us to recover the original with extraordinary confidence. Yes, non-canonical texts exist — and they are later, derivative, and theologically incompatible with the apostolic faith."
Conclusion
The "many Christianities" thesis contains a genuine insight — early Christianity was diverse — but packages it in a deeply misleading framework. Orthodox Christianity was not a later development imposed by power; it was the earliest attested form, rooted in the apostolic witness and recognized across the churches long before any institution had the power to impose anything. The canon is not the "winners' Bible" but the church's principled recognition of the writings that bore the marks of apostolic authority.
Discussion Questions
- The Bauer thesis claims "orthodoxy" was a later development that suppressed earlier, diverse forms of Christianity. The earliest evidence consistently supports orthodoxy. Why do you think the "many Christianities" thesis has become so popular despite the chronological evidence against it?
- The lesson argues that "diversity is not the same as equality." How do you distinguish between legitimate diversity within the faith (Paul and James) and illegitimate deviation (Gnosticism)? What criteria do you use?
- Ehrman takes real scholarly observations and presents them "in the most alarming possible light." How should Christians engage with scholars whose data is sound but whose framework is skeptical?