Leviticus 21:7

4 He must not make himself unclean for people related to him by marriage, and so defile himself.

5 “ ‘Priests must not shave their heads or shave off the edges of their beards or cut their bodies. 6 They must be holy to their God and must not profane the name of their God. Because they present the food offerings to the Lord, the food of their God, they are to be holy.

7 “ ‘They must not marry women defiled by prostitution or divorced from their husbands, because priests are holy to their God. 8 Regard them as holy, because they offer up the food of your God. Consider them holy, because I the Lord am holy—I who make you holy.

9 “ ‘If a priest’s daughter defiles herself by becoming a prostitute, she disgraces her father; she must be burned in the fire.

10 “ ‘The high priest, the one among his brothers who has had the anointing oil poured on his head and who has been ordained to wear the priestly garments, must not let his hair become unkempt or tear his clothes.