Leviticus 22:2-3

2Speak unto Aaron, and to his sons, that they separate themselves from the holy things of the children of Israel, and that they profane not my holy name in the things that they hallow unto me: I am Jehovah.

3Say unto them, Every one of all your seed, throughout your generations, that approacheth the holy things, which the children of Israel hallow unto Jehovah, having his uncleanness upon him, that soul shall be cut off from before me: I am Jehovah.