This portion of the book of Acts goes right into the first days of the ministry of Saul. He begins where he will remain for most of his earthly preaching career, proclaiming Christ as the Son of God in the Synagogues in public worship. Of the many things we can learn from this passage one of the most important principles of the life of the church in outreach is that the message we give to the world is a simple one, that doesn't need fancy gimmicks or radical programs: Preaching Christ and Him Crucified. This eternal truth answers the real problem the world has.