Leviticus 22:7

“‘Whoever of the offspring of Aaron is a leper or has a discharge shall not eat of the holy things until he is clean. Whoever touches anything that is unclean by the dead, or a man who has a seminal emission,

or whoever touches any creeping thing by which he may be made unclean, or a man from whom he may become unclean, whatever uncleanness he has—

the person that touches any such shall be unclean until the evening, and shall not eat of the holy things unless he bathes his body in water.

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

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

“‘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.