The most important evidence that Paul did not invent Christianity may be the part of his life he would have preferred to erase.
Before Paul defended the Christian faith, he attacked it. Before he planted churches, he tried to destroy the church. Before Christians read his letters, other Christians knew his name as the name of their persecutor.
We usually tell this story because Paul’s transformation was so dramatic. But his persecution gives us more than a conversion story. It gives us a direct line into Christianity’s beginning.
Paul could not persecute a faith that did not exist. He could not attempt to destroy a church that had not formed. More importantly, Paul does not say that he persecuted one religion and later created another.
He writes:
“The one who once persecuted us is now proclaiming the faith he once tried to destroy.”
Galatians 1:23
Paul believed that the faith he later proclaimed was the same faith he had previously attempted to destroy.
That does not mean Paul and the earliest apostles agreed about everything. They did not. It does not mean every part of Paul’s mature theology had already been developed before his conversion.
It means that Paul saw continuity at the center. The faith existed before him. He opposed it, changed sides, and then spent the rest of his life proclaiming it.
The Faith Existed Before Paul
For this argument, we do not need to begin with the Gospels or Acts. We can work entirely from the seven Pauline letters accepted as genuine across the scholarly spectrum.
In Galatians, Paul writes:
“You heard about my former way of life in Judaism, how violently I persecuted God’s church and tried to destroy it.”
Galatians 1:13
The language is severe. Paul does not say that he merely disagreed with Christians. He says that he tried to devastate their movement.
He repeats the same confession in First Corinthians:
“I am the least of the apostles and am not worthy to be called an apostle, because I persecuted God’s church.”
First Corinthians 15:9
Then, in Philippians, he describes his former religious zeal with the words:
“As for zeal, a persecutor of the church.”
Philippians 3:6
These are not three independent witnesses. They are three statements from the same man. Their historical weight comes from their appearance in three undisputed letters and three different arguments.
Paul regarded his persecution as a publicly known and permanent part of his history.
That history presupposes a movement older than his conversion. There was already a “church of God,” a community with a recognizable identity and message. Paul also refers to people who were “apostles before me,” to churches in Judea, and to believers who were “in Christ” before he was.
Paul may be our earliest surviving Christian author, but his own letters repeatedly point to a Christian world older than himself.
Paul Says It Was the Same Faith
Galatians 1:23 contains a deliberate contrast:
Formerly, Paul persecuted the faith.
Now, Paul proclaimed the faith.
The faith is the object of both activities. Paul does not say that he now preached something derived from the religion he once opposed. He says that he was now proclaiming “the faith he once tried to destroy.”
Here, “the faith” does not mean Paul’s private feeling of trust. It means the identifiable Christian message and movement, much as we speak today about “the Christian faith.”
The expression does not provide a complete creed. It does not prove that every doctrine in Romans was already being taught before Paul’s conversion.
But it establishes continuity of identity. Paul believed that he had joined the movement he once opposed. He had not replaced it with a new religion of his own creation.
The man changed sides.
The faith remained the faith.
First Corinthians Identifies the Center of That Faith
Galatians tells us that the faith existed before Paul, but it does not list everything that faith contained. To identify its center, we must place Galatians beside First Corinthians 15.
Paul begins by reminding the Corinthians of the gospel he had previously preached:
“I remind you of the gospel I proclaimed to you, which you received, in which you now stand, and through which you are being saved.”
First Corinthians 15:1–2
He then introduces material that existed before his teaching in Corinth:
“I handed on to you, among the first and most important things, what I also received: that Christ died for our sins according to the Scriptures, that he was buried, that he was raised on the third day according to the Scriptures, and that he appeared to Cephas and then to the Twelve.”
First Corinthians 15:3–5
Paul continues by naming appearances to a large gathering, James, all the apostles, and finally himself. He then mentions his persecution of the church and concludes:
“Whether it was I or they, this is what we proclaim, and this is what you believed.”
First Corinthians 15:11
“I” means Paul.
“They” refers to the apostles who preceded him.
“This” refers to the proclamation that Jesus died, was buried, was raised, and appeared.
Paul has placed the entire historical chain inside one paragraph: the message he received, the earlier witnesses, his own appearance claim, his former persecution, and the shared proclamation of the apostles.
Galatians establishes the identity of the faith:
“The faith he once tried to destroy.”
First Corinthians establishes its resurrection center:
“Whether it was I or they, this is what we proclaim.”
Taken together, these statements show that Paul did not regard resurrection Christianity as his private invention. It belonged to the movement that preceded him.
Paul Personally Knew the Earlier Leaders
Paul does not leave the earlier apostles as distant names.
After his encounter with Christ, he waited approximately three years before visiting Jerusalem:
“Then after three years I went up to Jerusalem to become acquainted with Cephas and stayed with him for fifteen days. I saw none of the other apostles except James, the Lord’s brother.”
Galatians 1:18–19
Paul does not tell us everything discussed during those fifteen days, so we should not turn the visit into a formal investigation that he never describes.
What the passage establishes is personal access.
Cephas and James were individually named in the resurrection tradition Paul preserved. They were also people Paul personally knew.
During a later Jerusalem visit, Paul placed his gospel before the recognized leaders. He names James, Cephas, and John as pillars who acknowledged his mission and extended fellowship to him and Barnabas.
This does not mean that they agreed about everything. Galatians records Paul publicly opposing Cephas over table fellowship with Gentile believers.
That disagreement is historically revealing. Paul was willing to tell us where he and Peter clashed. Yet he never describes a disagreement over whether Jesus had been raised or whether the resurrection gospel belonged at the center of their faith.
Instead, he says:
“Whether it was I or they, this is what we proclaim.”
Their missions differed. Their arguments were real. Their resurrection proclamation remained shared.
Paul’s Persecution Starts a Historical Clock
Galatians also gives us intervals from Paul’s life.
Paul says that his first visit to Cephas occurred after approximately three years. He later writes:
“Then after fourteen years I went up again to Jerusalem with Barnabas.”
Galatians 2:1
Throughout this series, we have adopted an early date of approximately AD 48 for Galatians. That date fits the early South Galatian chronology, although it is not accepted by every scholar.
At first, the arithmetic seems simple. AD 48 minus fourteen years places Paul’s conversion around AD 34.
The exact calculation is more complicated. The fourteen years end with the Jerusalem visit, not with the writing of Galatians. Scholars also disagree about whether Paul counted from his conversion or from his first Jerusalem visit. Ancient writers could include the first and last years in their totals.
We therefore have a range rather than an exact date.
If the fourteen years are counted from Paul’s conversion, his conversion falls approximately around AD 33–35.
If they are counted from the earlier Jerusalem visit, the conversion moves several years earlier, approximately into the AD 31–33 range.
The two leading dates proposed for Jesus’ crucifixion are AD 30 and AD 33. Under either reconstruction, Paul’s persecution and conversion belong within Christianity’s first few years.
If Jesus was crucified in AD 30, Paul encountered and joined the movement within the next several years.
If Jesus was crucified in AD 33 and Paul converted around AD 34–35, the interval may have been only months or a year or two.
The exact year remains uncertain. The sequence does not:
Jesus was crucified.
His followers began proclaiming that God had raised him.
A church formed around that proclamation.
Paul encountered the movement as its enemy.
Paul attempted to destroy it.
Paul then became convinced that Jesus had appeared to him and began proclaiming the faith he had once persecuted.
The letters were written later, but the history contained within them carries us back to Christianity’s beginning.
What Skeptical Scholars Concede
The argument that Paul did not invent the resurrection is not limited to Christian scholarship.
Bart Ehrman identifies as an agnostic and rejects the conclusion that God physically raised Jesus. Nevertheless, he writes:
“He did not come up with the idea that Jesus’ death brought salvation and that he had then been raised from the dead.”
Bart D. Ehrman, “Paul’s Importance in Early Christianity?” 2014
In another discussion, Ehrman reasons directly from Paul’s persecution:
“They necessarily were saying that Jesus rose from the dead before Paul ever heard about them.”
Bart D. Ehrman, “Did Paul Invent Jesus’ Resurrection?” 2022
That is the argument of Galatians 1:23. Resurrection belief had to exist before Paul could oppose the people proclaiming it.
The atheist New Testament scholar Gerd Lüdemann also dated the tradition preserved in First Corinthians 15 extremely early:
“The elements in the tradition are to be dated to the first two years after the crucifixion of Jesus.”
Gerd Lüdemann, The Resurrection of Jesus, 1994
Lüdemann believed the appearances were psychological visions. He did not believe Jesus was bodily raised. Yet he placed resurrection belief within Christianity’s opening years.
Even Richard Carrier, who represents the unusually radical position that Jesus may not have existed as an ordinary historical person, concedes:
“The Corinthian Creed, at least verses 3–5, definitely existed and was the central ‘gospel’ Christians were preaching in the early 30s.”
Richard Carrier, “Dating the Corinthian Creed,” 2016
These scholars disagree sharply with Christians about what caused the resurrection belief. They agree that the belief existed before Paul and reached into the movement’s earliest period.
That is a narrow agreement, but it is historically significant.
What This Does and Does Not Prove
This evidence does not prove that Jesus rose merely because resurrection belief arose early. Mistaken beliefs can arise quickly.
Paul also never states precisely why he persecuted Christians. His hostility may have involved their claim that a crucified man was the Messiah, their interpretation of Scripture, their relationship to the law, or several concerns at once.
Nor can we prove that every word of First Corinthians 15:3–7 had reached its final form before Paul’s conversion.
Those qualifications should be granted.
What remains is still substantial.
Before Paul’s conversion, a church and a recognizable faith already existed.
Paul says that he later proclaimed the faith he had attempted to destroy.
The faith he proclaimed centered upon Jesus’ death and resurrection.
Paul says the apostles before him proclaimed that same message.
He personally knew Cephas and James and later presented his gospel to the Jerusalem pillars.
Therefore, Paul may have developed Christian theology, carried it into new territory, and become its most influential surviving author. He did not create its resurrection center.
The skeptic may argue that the first Christians were mistaken.
The skeptic cannot reasonably move resurrection belief several generations away from Jesus or make Paul its inventor.
The Faith Was Already There
This is an important step toward trusting the Christian faith because it brings the disagreement to the correct place.
We do not have to begin by trusting every New Testament book. We can begin with seven letters accepted by Christian and skeptical historians.
From those letters, we discover that Paul first knew Christianity from the outside. He considered it false and dangerous. Yet after becoming convinced that Jesus had appeared to him, he did not describe himself as creating a new religion.
He said he had begun proclaiming the faith he once tried to destroy.
The skeptic says the resurrection belief arose immediately because Peter, Paul, and perhaps others misinterpreted visionary experiences.
The Christian says the belief arose immediately because Jesus actually appeared to them alive.
But both sides must begin with the same historical reality: the resurrection stood at the center of the movement before Paul became its apostle.
Paul did not invent the faith and then carry it into the world.
He encountered it as an enemy, joined it as a believer, confirmed his mission among its earlier leaders, and surrendered the rest of his life to its proclamation.
Before Paul could proclaim the resurrection, he tried to silence the people already proclaiming it.
Paul did not become the founder of a new Christianity.
He became the apostle of the faith he could not destroy.
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