Acts 15:3-5

3So, after being supplied and sent on their way by the church, they went through both Phoenicia and Samaria telling in detail the conversion of the Gentiles, and they brought great joy to all the believers.

4When they arrived in Jerusalem, they were received warmly by the church and the apostles and the elders, and they reported to them all the things that God had accomplished through them.

5But some from the sect of the Pharisees who had believed [in Jesus as the Messiah] stood up and said, “It is necessary to circumcise the Gentile converts and to direct them to observe the Law of Moses.”