Leviticus 21:14

11 He may not go near any dead body or make himself unclean for his father or his mother;

12 He may not go out of the holy place or make the holy place of his God common; for the crown of the holy oil of his God is on him: I am the Lord.

13 And let him take as his wife one who has not had relations with a man.

14 A widow, or one whose husband has put her away, or a common woman of loose behaviour, may not be the wife of a priest; but let him take a virgin from among his people.

15 And he may not make his seed unclean among his people, for I the Lord have made him holy.

16 And the Lord said to Moses,

17 Say to Aaron, If a man of your family, in any generation, is damaged in body, let him not come near to make the offering of the bread of his God.