Paul and Barnabas returned to Syrian Antioch, where they spent a considerable period of time strengthening the church there. After a number of months, they traveled to Jerusalem for a special meeting of church leaders. James and the Jerusalem Council ultimately decided that Gentile believers were not required to follow the Mosaic Law, but should abstain from immoral acts practiced throughout the Roman Empire. After returning to Antioch, Paul and Silas left on a second missionary journey. This three-year trek started in Galatia, where Paul revisited the churches he previously launched in Derbe, Lystra, Iconium, and Pisidian Antioch.