Leviticus 21:7-9

7“ ‘They must not marry women defiled by prostitution or divorced from their husbands, because priests are holy to their God.

8Regard 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.