Galatians 2:12

Overview - Galatians 2
He shows when he went up again to Jerusalem, and for what purpose;
and that Titus was not circumcised;
11 and that he resisted Peter, and told him the reason;
14 why he and others, being Jews, do believe in Christ to be justified by faith, and not by works;
20 and that they live not in sin, who are so justified.
Treasury of Scripture Knowledge

Galatians 2:12  (King James Version)
For before that certain came from James, he did eat with the Gentiles: but when they were come, he withdrew and separated himself, fearing them which were of the circumcision.

9 ; Acts 21:18-25

he did
Acts 10:28 ; 11:3 Ephesians 2:15 Ephesians 2:19-22 ; 3:6

he withdrew
Isaiah 65:5 ; Luke 15:2 ; 1 Thessalonians 5:22

Proverbs 29:25 ; Isaiah 57:11 ; Matthew 26:69-75