Leviticus 21:13-15

He shall take a wife in her virginity. He may not marry a widow or a divorced woman or one who is profaned by prostitution, but he is to marry a virgin from his own people, [1 Tim 3:2-7; Titus 1:7-9] so that he will not profane or dishonor his children among his people; for I am the LORD who sanctifies the high priest.’ ”