Leviticus 7:20
but the person who eats of the flesh of the sacrifice of the LORD's peace offerings while an uncleanness is on him, that person shall be cut off from his people.
Genesis 17:14
Any uncircumcised male who is not circumcised in the flesh of his foreskin shall be cut off from his people; he has broken my covenant."
Leviticus 15:2-33
"Speak to the people of Israel and say to them, When any man has a discharge from his body, his discharge is unclean.
Leviticus 22:3-7
Say to them, 'If any one of all your offspring throughout your generations approaches the holy things that the people of Israel dedicate to the LORD, while he has an uncleanness, that person shall be cut off from my presence: I am the LORD.
1 Corinthians 11:28
Let a person examine himself, then, and so eat of the bread and drink of the cup.