Original Verse:
Acts Chapter 16 Verse 3Paul wanted to have him go out with him, and he took and circumcised him because of the Jews who were in those parts; for they all knew that his father was a Greek.

Reference Verses:
1st Corinthians Chapter 9 Verse 20To the Jews I became as a Jew, that I might gain Jews; to those who are under the law, as under the law, that I might gain those who are under the law;
Galatians Chapter 2 Verse 3But not even Titus, who was with me, being a Greek, was compelled to be circumcised.