Leviticus 21:5-7

⁵Priests must not shave their heads or shave off the corners of their beards, nor cut their bodies.

⁶They must be holy to their God and not disgrace the name of their God, because the priests offer Yahweh's food offerings, the bread of their God. Therefore the priests must be holy.

⁷They must not marry any woman who is a prostitute and who is defiled, and they must not marry a woman divorced from her husband, for they are separate for their God.