Leviticus 21:10-15

‘The priest who is the highest among his brothers, on whose head the anointing oil has been poured and who has been consecrated to wear the garments, shall not uncover his head nor tear his clothes; nor shall he approach any dead person, nor defile himself even for his father or his mother; nor shall he go out of the sanctuary nor profane the sanctuary of his God, for the consecration of the anointing oil of his God is on him; I am the LORD. He shall take a wife in her virginity. A widow, or a divorced woman, or one who is profaned by harlotry, these he may not take; but rather he is to marry a virgin of his own people, so that he will not profane his offspring among his people; for I am the LORD who sanctifies him.’ ”