“This is the portion of Aaron and of his sons from the LORD's food offerings, from the day they were presented to serve as priests of the LORD” (v35). When the Israelites settled in the Promised Land, the priests were not given any large inheritance of land for themselves. In an agricultural society, this meant that they were “poor,” completely dependent on the offerings brought into the Temple. The sacrificed, cooked meat and grain offerings were the “perpetual due” of the priests, sustaining them while they directed Temple worship (v34).
“It is most holy” (v1). The priests represented God’s ultimate desire for everyone: to live in fellowship with Him, worshipping Him freely, trusting Him for our daily needs.