Galatians 2:12

12Before certain men came from James, he used to eat [his meals] with the Gentiles; but when the men [from Jerusalem] arrived, he began to withdraw and separate himself [from the Gentile believers], because he was afraid of those from the 2:12 I.e. self-righteous Jewish converts who twisted the gospel to suit their legalistic beliefs, observed Mosaic Law, and would not eat with Gentile believers.circumcision.