1st Corinthians 9:17

14 Even so did the Lord ordain that they that proclaim the gospel should live of the gospel.

15 But I have used none of these things: and I write not these things that it may be so done in my case; for [it were] good for me rather to die, than that any man should make my glorifying void.

16 For if I preach the gospel, I have nothing to glory of; for necessity is laid upon me; for woe is unto me, if I preach not the gospel.

17 For if I do this of mine own will, I have a reward: but if not of mine own will, I have a stewardship intrusted to me.

18 What then is my reward? That, when I preach the gospel, I may make the gospel without charge, so as not to use to the full my right in the gospel.

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

20 And to the Jews I became as a Jew, that I might gain Jews; to them that are under the law, as under the law, not being myself under the law, that I might gain them that are under the law;