Leviticus 21:3-7

³and for his sister, a virgin, that is near unto him, who hath had no husband, for her may he make himself unclean.

⁴He shall not make himself unclean who is a chief among his peoples, to profane himself.

⁵They shall not make any baldness upon their head, neither shall they shave off the corners of their beard, nor make any cuttings in their flesh.

⁶They shall be holy unto their God, and not profane the name of their God; for they present Jehovah's offerings by fire, the bread of their God; therefore shall they be holy.

⁷They shall not take as wife a whore, or a dishonoured woman; neither shall they take a woman put away from her husband; for he is holy unto his God.