Leviticus 7:27-33

²⁷If anyone eats blood, he must no longer be allowed to associate with God's people.”

²⁸Yahweh also said to Moses/me,

²⁹“Tell the Israeli people this: Anyone who brings an offering to maintain fellowship with Yahweh must bring part of it to be a sacrifice to Yahweh.

³⁰He himself must bring the offering that will be burned in the fire. He must bring the fat along with the breast of the animal and lift it up in front of Yahweh to indicate that it is an offering to him.

³¹The Supreme Priest must burn the fat on the altar, but the breast belongs to Aaron and all his sons.

³²You must give to the Supreme Priest the right thigh of the animal that is sacrificed to maintain fellowship with Yahweh.

³³The son of Aaron who offers the blood and the fat of that sacrifice must be given the right thigh of the animal as his share.