GAL 2:12

12 [This is what happened]: [Peter went to Antioch and started eating regularly with non-Jewish believers there]. Later there were certain [Jewish believers who] came [to Antioch who claimed that] James, [the leader of the congregations in Jerusalem], had sent them. But when [those certain] men came, Peter gradually quit [eating] with the non-Jewish believers and would not associate with them. He was afraid that the Jewish [believers from Jerusalem would criticize him for associating with non-Jews].