Galatians 2:3
(But neither was Titus, who was with me,
Acts 16:3
Him Paul would have to go forth with him; and he 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 some who came from us have troubled you with words, unsettling your minds, saying, Ye must be circumcised, and keep the law, whom we commanded not.
1 Corinthians 9:20-21
To 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 did not find Titus my brother; so taking leave of them, I went forth into Macedonia.
Galatians 5:2-6
Behold, I Paul say unto you, If ye be circumcised, Christ shall profit you nothing.