Leviticus 7:21

"'Moreover the person who touches any unclean thing, such as human uncleanness, an unclean animal, or any abominable unclean thing, and who eats the flesh of the sacrifice of the peace offering that belongs to the Lord, that person shall be cut off from his people.'"

(There were very serious consequences to not obeying the laws of the covenant and fulfillment of sacrifices.)