1 Corinthians 9:17-27

17If my preaching is voluntary, I have a reward. But if it is not voluntary, I am still entrusted with a responsibility. 18What then is my reward? That in preaching the gospel I may offer it free of charge, and so not use up my rights in preaching it.

19Though I am free of obligation to anyone, I make myself a slave to everyone, to win as many as possible. 20To the Jews I became like a Jew, to win the Jews. To those under the law I became like one under the law (though I myself am not under the law), to win those under the law. 21To those without the law I became like one without the law (though I am not outside the law of God but am under the law of Christ), to win those without the law. 22To the weak I became weak, to win the weak. I have become all things to all people so that by all possible means I might save some.

23I do all this for the sake of the gospel, so that I may share in its blessings.

24Do you not know that in a race all the runners run, but only one receives the prize? Run in such a way as to take the prize. 25Everyone who competes in the games trains with strict discipline. They do it for a crown that is perishable, but we do it for a crown that is imperishable. 26Therefore I do not run aimlessly; I do not fight like I am beating the air. 27No, I discipline my body and make it my slave, so that after I have preached to others, I myself will not be disqualified.