Acts 16:6

Now when they had gone throughout Phrygia and the region of Galatia, and were forbidden of the Holy Ghost to preach the word in Asia,

Paul set out on another missionary journey to revisit believers in cities where he had already preached, in order to care for and strengthen those converts. Accompanied by Silas and Timothy, he traveled through Phrygia and the region of Galatia proclaiming salvation. There they taught righteousness by faith in Christ's atoning sacrifice, through which Christ redeemed fallen humanity both by obeying God's law and by bearing the penalty for disobedience. Among the idol-worshiping Galatians this message revealed the Father's love, and those who believed received the Spirit through faith and became God's children by faith in Christ.