Leviticus 21:12-14

¹²And he shall not go forth out of the sanctuary, and he shall not profane the sanctuary of his God, because the holy anointing oil of God is upon him: I am the Lord.

¹³He shall take for a wife a virgin of his own tribe.

¹⁴But a widow, or one that is put away, or profaned, or a harlot, these he shall not take; but he shall take for a wife a virgin of his own people.