Leviticus 21:8, 15, 23

Thou shalt sanctify him therefore; for he offereth the bread of thy God: he shall be holy unto thee; for I Jehovah, who sanctify you, am holy.

And he shall not profane his seed among his people: for I am Jehovah who sanctifieth him.

only he shall not go in unto the veil, nor come nigh unto the altar, because he hath a blemish; that he profane not my sanctuaries: for I am Jehovah who sanctifieth them.