1 Corinthians 9:17-22

17For if I do this of my own will, I have a reward, but if not of my own will, I am still entrusted with a stewardship. 18What then is my reward? That in my preaching I may present the gospel free of charge, so as not to make full use of my right in the gospel. 19For though I am free from all, I have made myself a servant to all, that I might win more of them. 20To the Jews I became as a Jew, in order to win Jews. To those under the law I became as one under the law (though not being myself under the law) that I might win those under the law. 21To those outside the law I became as one outside the law (not being outside the law of God but under the law of Christ) that I might win those outside the law. 22To the weak I became weak, that I might win the weak. I have become all things to all people, that by all means I might save some.