1. Challenge in Corinth (12-17)

The Jews arrested Paul and brought him for judgment, but God protected him. The proconsul Gallio refused to judge matters of Jewish law, and so the work in Corinth continued to grow,

2. Emerging leaders (18-28)

Paul traveled back to Antioch, leaving Priscilla and Aquila in Ephesus, then going through Caesarea and Jerusalem on his way. After a time he set out again, visiting the churches in Asia Minor. In Ephesus, Priscilla and Aquila met a man named Apollos, who had knowledge of the Scriptures and John the Baptist, but not Jesus. They taught him the gospel in their house church and raised him as a man who could adequately prove from the Scriptures that Jesus was the Messiah. The Lord was raising new leaders for his ministry.