Leviticus 7:27-35

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.

³⁴From the offerings that the Israeli people give to maintain fellowship with Yahweh, he has declared that he has given to Aaron and his sons the breast that is lifted up and the right thigh that is offered; those portions must always be their regular share from the Israeli people.”

³⁵Those are the portions of the offerings brought/given to Yahweh and burned in fire that are allotted to Aaron and his sons on the day that they are set apart to serve Yahweh as priests.