He was a Helenized Jew from Syria. He is a "follower" of Jesus. He never actually met Jesus bc Jesus is dead at the time. He becomes know as the Apostle of the Gentiles. Jesus was to the Jews and Paul was to the Non-Jews. He said to follow Jesus you don't need to convert to Judaism but rather to believe that Jesus was the Messiah. The Jerusalem "Church" (not actually a church it was a community) did not like what Paul was doing. So James, the head of the church, also Jesus' brother, meets with Paul when he comes to Jerusalem. And they have a confrontation.