1 Corinthians 9:19

For if I preach the Good News, I have nothing to boast about, for necessity is laid on me; but woe is to me if I don’t preach the Good News.

For if I do this of my own will, I have a reward. But if not of my own will, I have a stewardship entrusted to me.

What then is my reward? That when I preach the Good News, I may present the Good News of Christ without charge, so as not to abuse my authority in the Good News.

To the Jews I became as a Jew, that I might gain Jews; to those who are under the law, as under the law, that I might gain those who are under the law;

to those who are without law, as without law (not being without law toward God, but under law toward Christ), that I might win those who are without law.

To the weak I became as weak, that I might gain the weak. I have become all things to all men, that I may by all means save some.