Galatians 2:3
Also Titus which was with me, though he were a Greek, yet was not compelled to be circumcised;
Acts 16:3
The same, Paul would that he should 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 departed from us, have troubled you with words, and cumbered your minds 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, to win the Jews. To them that were under the law, was I made as though I had been under the law, to win them that were under the law.
2 Corinthians 2:13
I had no rest in my spirit, because I found not Titus my brother: but took my leave of them and went away into Macedonia.
Galatians 5:2-6
Behold, I Paul say unto you, that if ye be circumcised, Christ shall profit you nothing at all.