We are here given an outline of the sermon Paul preached in the synagogue at Pisidian Antioch. The sermon was preached to Jews and Gentile God-fearers both. Remember that by this point in history, the faith of Israel was mighty attractive to many Gentiles, and they admired it from their seats in the back row. But circumcision and keeping the entire law was a real barrier to full entry, and the message brought by the Christian evangelists was therefore electrifying.
