Leviticus 21:4-6

New Living Translation

⁴ But a priest must not defile himself and make himself unclean for someone who is related to him only by marriage.

⁵ “The priests must not shave their heads or trim their beards or cut their bodies. ⁶ They must be set apart as holy to their God and must never bring shame on the name of God. They must be holy, for they are the ones who present the special gifts to the Lord, gifts of food for their God.