1 Corinthians 9:19-23

For although I am free in every way from anyone's control, I have made myself a bond servant to everyone, so that I might gain the more [for Christ]. To the Jews I became as a Jew, that I might win Jews; to men under the Law, [I became] as one under the Law, though not myself being under the Law, that I might win those under the Law. To those without (outside) law I became as one without law, not that I am without the law of God and lawless toward Him, but that I am [especially keeping] within and committed to the law of Christ, that I might win those who are without law. To the weak (wanting in discernment) I have become weak (wanting in discernment) that I might win the weak and overscrupulous. I have [in short] become all things to all men, that I might by all means (at all costs and in any and every way) save some [by winning them to faith in Jesus Christ]. And I do this for the sake of the good news (the Gospel), in order that I may become a participator in it and share in its [blessings along with you].