1 Corinthians 9:8-10

I do not say this by human authority; God’s law also says the same thing. It is written in the law of Moses: “When an ox is working in the grain, do not cover its mouth to keep it from eating.” When God said this, was he thinking only about oxen? No. He was really talking about us. Yes, that Scripture was written for us, because it goes on to say: “The one who plows and the one who works in the grain should hope to get some of the grain for their work.”