1 Corinthians 9:17 in the King James Version
For if I do this thing willingly, I have a reward: but if against my will, a dispensation of the gospel is committed unto me.
Context
16 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.
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 Good News, I may present the Good News of Christ without charge, so as not to abuse my authority in the Good News.