1 Timothy 5:18

1 Corinthians 9:14 NIV
In the same way, the Lord has commanded that those who preach the gospel should receive their living from the gospel.

1 Corinthians 9:7-10 NIV
Who serves as a soldier at his own expense? Who plants a vineyard and does not eat its grapes? Who tends a flock and does not drink the milk? Do I say this merely on human authority? Doesn’t the Law say the same thing? For it is written in the Law of Moses: “Do not muzzle an ox while it is treading out the grain.” Is it about oxen that God is concerned? Surely he says this for us, doesn’t he? Yes, this was written for us, because whoever plows and threshes should be able to do so in the hope of sharing in the harvest.

Deuteronomy 25:4 NIV
Do not muzzle an ox while it is treading out the grain.

Luke 10:7 NIV
Stay there, eating and drinking whatever they give you, for the worker deserves his wages. Do not move around from house to house.

Matthew 10:10 NIV
no bag for the journey or extra shirt or sandals or a staff, for the worker is worth his keep.