1 Corinthians 9:20-22

20To the Jews I became like a Jew to gain the Jews. To those under the law I became like one under the law (though I myself am not under the law) to gain those under the law.

21To those free from the law I became like one free from the law (though I am not free from God’s law but under the law of Christ) to gain those free from the law.

22To the weak I became weak in order to gain the weak. I have become all things to all people, so that by all means I may save some.