1 Corinthians 9:19-23

For though I am free from all men, I have made myself a slave to all, so that I might win over more of them. To the Jewish people I identified as a Jew, so that I might win over the Jewish people. To those under Torah I became like one under Torah (though not myself being under Torah), so that I might win over those under Torah; to those outside Torah, like one outside Torah (though not being outside God’s Torah but in Messiah’s Torah), so that I might win over those outside Torah. To the weak I became weak, so that I might win over the weak. I have become all things to all men, so that by all means possible I might save some. I do it all for the sake of the Good News, so that I might be a fellow partaker of it.