Adam Clarke, on 1Cor 9:13

“Know you not, that they who work in the holy place, eat the things that are of the holy place; and they that serve the altar, partake with the altar?”

“They which minister about holy things - All the officers about the temple, whether priests, Levites, Nethinim, etc., had a right to their support while employed in its service. The priests partook of the sacrifices; the others had their maintenance from tithes, first fruits, and offerings made to the temple; for it was not lawful for them to live on the sacrifices. Hence the apostle makes the distinction between those who minister about holy things and those who wait at the altar.”

Imported from an open dataset — not yet checked against the printed edition.