Galatians 2:3
2:3 Yet not even Titus, who was with me, was compelled to be circumcised, although he was a Greek.
Galatians 2:8
2:8 (for he who empowered Peter for his apostleship to the circumcised also empowered me for my apostleship to the Gentiles)
Galatians 6:17
6:17 From now on let no one cause me trouble, for I bear the marks of Jesus on my body.