1 Corinthians 9:14-18

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

15But 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 glorying void.

16For 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.

17For 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.

18What 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.