Deuteronomy 18:3
And this shall be the priests' due from the people, from those offering a sacrifice, whether an ox or a sheep: they shall give to the priest the shoulder and the two cheeks and the stomach.
Leviticus 7:30-34
His own hands shall bring the LORD's food offerings. He shall bring the fat with the breast, that the breast may be waved as a wave offering before the LORD.
Deuteronomy 12:27
and offer your burnt offerings, the flesh and the blood, on the altar of the LORD your God. The blood of your sacrifices shall be poured out on the altar of the LORD your God, but the flesh you may eat.