Leviticus 21:10-14

10The priest who is highest among his brothers, who has had the anointing oil poured on his head and has been ordained to wear the priestly garments, must not let his hair hang loose1 or tear his garments. 11He must not go near any dead body; he must not defile himself, even for his father or mother. 12He must not leave or desecrate the sanctuary of his God, for the consecration of the anointing oil of his God is on him. I am the LORD.

13The woman he marries must be a virgin. 14He is not to marry a widow, a divorced woman, or one defiled by prostitution. He is to marry a virgin from his own people,