1 Corinthians 9:18-20

New International Version - UK

¹⁸ What then is my reward? Just this: that in preaching the gospel I may offer it free of charge, and so not make full use of my rights as a preacher of the gospel.

Paul’s use of his freedom

¹⁹ Though I am free and belong to no one, I have made myself a slave to everyone, to win as many as possible. ²⁰ To 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), so as to win those under the law.