1 Corinthians 9:17-19
21st Century King James Version
17 For if I do this thing willingly, I have a reward; but if against my will, a dispensing of the Gospel is committed unto me.
18 What is my reward then? Verily that, when I preach the Gospel, I may make the Gospel of Christ without charge, that I abuse not my power in the Gospel.
19 For though I am free from all men, yet have I made myself servant unto all, that I might gain the more.Read full chapter