Galatians 2:3
And even Titus, who was with me, though a Greek, was not compelled to be circumcised:
Acts 16:3
Him Paul resolved to take out with him; and took and circumcised him because of the Jews who were in those places: for they all knew his father, that he was a Greek.
Acts 15:24
Forasmuch as we have heard, that certain persons who went out from us have disturbed you with discourses, unsettling your minds, insisting, that you should be circumcised, and observe the law: to whom we gave no such charge:
1 Corinthians 9:20-21
And I became to the Jews as a Jew, that I might gain the Jews; to those under the law, as under the law, that I might gain those who are under the law;
2 Corinthians 2:13
I had no test in my spirit on my not finding there Titus my brother: so taking my leave of them I went forth unto Macedonia.
Galatians 5:2-6
Behold, I Paul declare to you, that if ye be circumcised, Christ will be of no advantage to you.