1 Corinthians 9:13-15

Don’t you know that the priests employed in sacred duty in the temple are provided for by temple resources? And the priests who serve at the altar receive a portion of the offerings? In the same way, the Lord has directed those who proclaim the gospel to receive their living by the gospel. As for me, I’ve preferred to never use any of these rights for myself. And keep in mind that I’m not writing all this because I’m hinting that you should support me. Actually, I’d rather die than to have anyone rob me of this joyous reason for boasting!