Galatians 2:3
But neither Titus, who was with me, being a Greek, was compelled to be circumcised:
Acts 16:3
Him would Paul have to go forth with him; and took and circumcised him because of the Jews which were in those quarters: for they knew all that his father was a Greek.
Acts 15:24
Forasmuch as we have heard, that certain which went out from us have troubled you with words, subverting your souls, saying, Ye must be circumcised, and keep the law: to whom we gave no such commandment:
1 Corinthians 9:20-21
And unto the Jews I became as a Jew, that I might gain the Jews; to them that are under the law, as under the law, that I might gain them that are under the law;
2 Corinthians 2:13
I had no rest in my spirit, because I found not Titus my brother: but taking my leave of them, I went from thence into Macedonia.
Galatians 5:2-6
Behold, I Paul say unto you, that if ye be circumcised, Christ shall profit you nothing.