Leviticus 21:6-8

The Voice

⁶ Priests are to be holy to Me and not treat My sacred name with contempt. They bring the fire-offerings to Me, the food of their God, and so they must be sacred. ⁷ Priests are not to marry women defiled by prostitution or women who are divorced, for priests are holy to Me.

⁸ You must set the priest apart as special and treat him as holy, for he brings the food to your God. The priests must be considered holy to you because I, the Eternal, am holy, and I have set you apart from all other nations.