Shortly after the departure of Jesus (pbuh), a Jew named Saul of Tarsus persecutes Jesus' followers every way he knows how. By his own admission, he does his utmost to utterly waste the Church and to wipe the religion of Jesus from the face of the earth and the minds of men. He has never met Jesus (pbuh) in person.
Suddenly Saul claims to be receiving "visions" from Jesus (pbuh). The apostle Barnabas takes him under his wing, and through Barnabas he is accepted by the rest of the apostles. Barnabas then travels with him extensively until his reputation as a persecutor and killer of Christians is replaced with one of a true convert.
Now Saul parts ways with the apostle of Jesus (pbuh), Barnabas, and decides to preach to the Gentiles. He claims that the apostles of Jesus (pbuh) are lazy, misguided, hypocrites. He claims that it was necessary for him to constantly guide the apostles out of their ignorance into the truth of God which he was receiving in his "visions." He openly claims that he learned nothing from the apostles, and every single word he preached was from direct divine inspiration. The neighboring gentiles hated the Jews with such a passion that he found it all but impossible to convince them to accept the Judaism that Jesus (pbuh) practiced his whole life and taught his apostles to carry on after him until the end of time.
Saul readily admits in the Bible in many places that he was willing to do anything without exception in order to convert the gentiles. He claims that everything has been made lawful for him. For this reason, Saul begins to compromise with the pagan gentiles and simplify the religion of Jesus for them in order to make it more appealing to them that they might convert.
Saul continues to compromise with the gentiles and mold the religion of Jesus (pbuh) closer and closer to their established beliefs in order to gain their conversion. In the end, all that he requires of them is "faith" without work. The pagan gentiles he is preaching to worship many "sons of almighty Jupiter or Zeus" and other such gods. Among them are such as Attis, Adonis, Dionysus, etc. They believe that these pagan gods had died for their sins and been resurrected. Saul now explains to them that Jesus (pbuh) was not merely a normal human prophet but a "Son of God" and that this "Son of God" died in atonement for the sins of all mankind. The Gentiles immediately see the parallels and the great degree of similarity with that which they already believe. All they have to do is change a few labels. In this manner, Saul manages to convince the Greeks (and other gentiles) to accept the "religion of Jesus." This is because, unlike the Jews, the religion of the Greeks already accepts "Trinities," and "father gods" and "son gods," and the death of gods, and the resurrection of gods, and the incarnation of gods, and divine savior gods, and the eating of the flesh of gods, and the drinking of the blood of gods...etc. All of these concepts are old news to them. He becomes a great leader among them and is named "Saint Paul."