1 Corinthians 9:20-22

201To the Jews I became as a Jew, so that I might gain Jews; to those who are under the Law, I became as one under the Law, though 2not being under the Law myself, so that I might gain those who are under the Law;

21to those who are 3without the Law, I became 4as one without the Law, though not being without the law of God but 5under the law of Christ, so that I might gain those who are without the Law.

22To the 6weak I became weak, that I might gain the weak; I have become 7all things to all people, 8so that I may by all means save some.