1st Corinthians 9:17

14 Even so did the Lord ordain that those who proclaim the gospel should live from the gospel.

15 But I have used none of these things, and I don`t write these things that it may be done so in my case; for I would rather die, than that anyone should make my boasting void.

16 For if I preach the gospel, I have nothing to boast about; for necessity is laid on me; but woe is to me, if I don`t preach the gospel.

17 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.

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

19 For though I was free from all, I brought myself under bondage to all, that I might gain the more.

20 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;