Leviticus 7:20
But he who is unclean when he takes as food the flesh of the peace-offerings, which are the Lord's, will be cut off from his people.
Genesis 17:14
And any male who does not undergo circumcision will be cut off from his people: my agreement has been broken by him.
Leviticus 15:2-33
Say to the children of Israel: If a man has an unclean flow from his flesh, it will make him unclean.
Leviticus 22:3-7
Say to them, If any man of all your seed through all your generations, being unclean, comes near the holy things which the children of Israel make holy to the Lord, he will be cut off from before me: I am the Lord.
1 Corinthians 11:28
But let no man take of the bread and the cup without testing himself.