1 Corinthians 9:12, 14, 18, 23

If others share this rightful claim on you, do not we even more? Nevertheless, we have not made use of this right, but we endure anything rather than put an obstacle in the way of the gospel of Christ.

In the same way, the Lord commanded that those who proclaim the gospel should get their living by the gospel.

What then is my reward? That in my preaching I may present the gospel free of charge, so as not to make full use of my right in the gospel.

I do it all for the sake of the gospel, that I may share with them in its blessings.