Treasury of Scripture Knowledge
Behold, I Paul say to you, that if ye are circumcised, Christ will benefit you nothing.
Since we have heard that certain men who went out from us have troubled you with words, disturbing your souls, saying to be circumcised, and to keep the law, to whom we did not command,
Paul wanted this man to go forth with him. And having taken him, he circumcised him because of the Jews who were in those regions, for they had all seen that his father was a Greek.
1 Corinthians 9:20
And to the Jews I became as a Jew, so that I might gain Jews, to those under law, as under law, so that I might gain those under law,