1 Corinthians 9:5-10

Don’t we have the right to travel accompanied by our believing wives and be supported as a couple, as do the other apostles, such as Peter the Rock and the Lord’s brothers? Of course we do! Or is it only Barnabas and I who have no right to stop working for a living? Who serves in the military at his own expense? Who plants a vineyard and does not enjoy the grapes for himself? Who would nurture and shepherd a flock and never get to drink its fresh milk? Am I merely giving you my own opinions, or does the Torah teach the same things? For it is written in the law of Moses: You should never put a muzzle over the mouth of an ox while he is treading out the grain. Tell me, is God only talking about oxen here? Doesn’t he also give us this principle so that we won’t withhold support from his workers? It was written so that we would understand that the one spiritually “plowing” and spiritually “treading out the grain” also labors with the expectation of enjoying the harvest.