Leviticus 21:5-8

“Priests must not shave their heads or trim their beards or gash their bodies. They must be holy to their God and must not profane the name of their God. Because their job is to present the gifts of GOD, the food of their God, they are to be holy. “Because a priest is holy to his God he must not marry a woman who has been a harlot or a cult prostitute or a divorced woman. Make sure he is holy because he serves the food of your God. Treat him as holy because I, GOD, who make you holy, am holy.