Komentarz do Diwrej ha-jamim II 31:17

And the priests who traced their genealogy to the house of their fathers, and the Levites with the genealogy of their infants, their wives, their sons, and their daughters. They would supply their sustenance from the heave-offerings and the tithes for that entire congregation. All these whom we mentioned [would supply food] to those who stood in the forecourt, and also to the sons of Aaron, the priests whose watch had not yet come about in which to minister, and who were in the field of the open land of their cities, in every city.