Acts 16:1-5

Paul went on to Derbe and Lystra, where there was a disciple named Timothy, the son of a believing Jewish woman, but his father was a Greek. The brothers and sisters at Lystra and Iconium spoke highly of him. Paul wanted Timothy to go with him; so he took him and circumcised him because of the Jews who were in those places, since they all knew that his father was a Greek. As they traveled through the towns, they delivered the decisions reached by the apostles and elders at Jerusalem for the people to observe. So the churches were strengthened in the faith and grew daily in numbers.