Leviticus 22:8-10

⁸He shall not eat that which dies of itself or is torn by animals, defiling himself by it. I am Yahweh.

⁹“‘They shall therefore follow my commandment, lest they bear sin for it and die in it, if they profane it. I am Yahweh who sanctifies them.

¹⁰“‘No stranger shall eat of the holy thing: a foreigner living with the priests, or a hired servant, shall not eat of the holy thing.