Even so has the Lord ordained that they who preach the gospel should live of the gospel.
All Commentaries on 1 Corinthians 9:14 Go To 1 Corinthians 9
Ambrosiaster
AD 400
It was not by the law of Moses that God followed the practice of the Gentiles, but natural reason itself decrees that a person should live from his labor. Commentary on Paul’s Epistles.