Exodus 29:27,28
And you shall sanctify the breast of the wave offering, and the shoulder of the heave offering, which is waved, and which is heaved up, of the ram of the consecration, even of that which is for Aaron, and of that which is for his sons:
Torrey's Topical Textbook—AKJV

Deuteronomy 18:3
And this shall be the priest's due from the people, from them that offer a sacrifice, whether it be ox or sheep; and they shall give to the priest the shoulder, and the two cheeks, and the maw.
Torrey's Topical Textbook—AKJV

Joshua 13:14
Only to the tribes of Levi he gave none inheritance; the sacrifices of the LORD God of Israel made by fire are their inheritance, as he said to them.
Torrey's Topical Textbook—AKJV

1 Corinthians 9:13
Do you not know that they which minister about holy things live of the things of the temple? and they which wait at the altar are partakers with the altar?
Torrey's Topical Textbook—AKJV