Leviticus 7:20-21

20But the one who eats meat from the sacrifice of peace offerings which belong to the Lord, in his uncleanness, that person shall be cut off from his people [excluding him from the atonement made for them].

21When anyone touches any unclean thing—human uncleanness, or an unclean animal, or any unclean detestable thing—and then eats the meat of the sacrifice of the Lord’s peace offerings, that person shall be cut off from his people [excluding him from the atonement made for them].’ ”