This article is the fifth in our five-part series exploring the historical, literary, and theological reality of the Apostle Paul. Relying on modern historical-critical scholarship, this series has unpacked who Paul was, what his core ideas were, and provided a synopsis of his undisputed and pseudepigraphical letters. Part 5 tackles the ultimate historical debate: Did Paul invent a new religion, and is he the true founder of Christianity?

There is a long-standing critique in Western history—championed by thinkers ranging from Thomas Jefferson to Friedrich Nietzsche—that Christianity was effectively the victim of a hostile takeover.

In this popular view, Jesus of Nazareth was a simple, ethical Jewish teacher who preached love, forgiveness, and the imminent kingdom of God. But after his death, the Apostle Paul hijacked the movement. According to this critique, Paul transformed a simple ethical philosophy into a highly dogmatic, cosmic religion obsessed with original sin, blood atonement, and rigid theology.

In short: Jesus preached the kingdom; Paul preached the Church. Therefore, Paul, not Jesus, is the true founder of Christianity.

When modern historical-critical scholars examine this claim, they find a grain of truth, but they ultimately offer a much more nuanced view of how the ancient world actually operated.

The Religion That Didn’t Exist

The primary flaw in the “Paul invented Christianity” theory is that it assumes “Christianity” was a conscious concept in the first century.

Did Paul invent Christianity? If we define “Christianity” as a distinct, non-Jewish world religion with its own separate institutions, buildings, and holy days, the historical answer is an absolute no.

Paul died thinking of himself as a Jew. He never abandoned the God of Israel, the Jewish scriptures, or his fundamental Jewish identity. He never intended to start a new world religion. As discussed earlier in this series, Paul believed he was living in the final days of human history. To Paul, the Jesus movement was not a departure from Judaism; it was the ultimate, apocalyptic fulfillment of it. He believed the Jewish Messiah had arrived and the end of the world was at hand.

You cannot intend to found a two-thousand-year institutional religion if you firmly believe the world is going to end in your own lifetime.

The Architect of a Global Faith

However, if Paul did not consciously invent Christianity, he is undeniably the architect of the theological and sociological boundaries that allowed Christianity to become a separate religion.

Jesus’s earthly ministry was almost exclusively directed at other Jews within the geographical borders of the Galilee and Judea. If the movement had remained exactly as Jesus left it, it likely would have survived as a small, localized Jewish sect before eventually fading into history alongside the Essenes and the Zealots.

It was Paul who forced the movement onto the global stage.

Paul fought the agonizing, highly unpopular battles against his fellow Jewish-Christians (including Peter and James) to allow non-Jews (Gentiles) into the movement without forcing them to convert to Judaism. He argued that because the Messiah had arrived, the ancient prophecies of the nations turning to God were coming true. Therefore, Gentiles did not need to be circumcised or follow kosher dietary laws. They were justified entirely by the faithfulness of Christ.

The Portable Theology

This single theological pivot changed the course of human history.

By uncoupling the worship of the God of Israel from the physical, geographical, and cultural requirements of the Jewish Law, Paul created a “portable” theology. Suddenly, a Roman centurion in Italy, a Greek merchant in Corinth, and an enslaved person in Ephesus could all worship the God of Israel without having to adopt the cultural practices of a specific Middle Eastern ethnic group.

Furthermore, Paul built the infrastructure. While he didn’t build church buildings, he built a vast, interconnected network of communities through his relentless travel, his fundraising, and his prolific letter-writing. He taught these disparate groups across the Mediterranean to view themselves as a single, unified body.

The Spark and the Engine

Ultimately, pitting Jesus and Paul against each other is a false historical dichotomy.

Jesus provided the apocalyptic spark. He was the charismatic center, the historical figure whose teachings and crucifixion ignited the movement. But a spark in the ancient world was highly vulnerable; it could easily be extinguished by the overwhelming power of the Roman Empire or lost to the passage of time.

Paul was the structural engineer. He took that messianic spark and built a theological and sociological engine robust enough to carry it out of Judea and to the very ends of the earth. Paul did not invent Christianity, but without his radical vision for Gentile inclusion and his tireless letters, the religion as we know it simply would not exist.

This concludes Part 5/7 of this series. In Part 6 of “The Historical Paul: Life, Letters, and Legacy,” we will strip away the myth of the unified early church to explore the bitter, historical rivalry between Paul and the original disciples in Jerusalem—and the public argument that threatened to tear the movement apart.