"And this shall be the priest's due from the people, from those who offer a sacrifice, whether it is bull or sheep: they shall give to the priest the shoulder, the cheeks, and the stomach.
Deuteronomy 18:3
Surrounding context
18:2 Therefore they shall have no inheritance among their brethren; the LORD is their inheritance, as He said to them.
18:3 "And this shall be the priest's due from the people, from those who offer a sacrifice, whether it is bull or sheep: they shall give to the priest the shoulder, the cheeks, and the stomach.
18:4 The firstfruits of your grain and your new wine and your oil, and the first of the fleece of your sheep, you shall give him.