Leviticus 21:3-7

³And for a maiden sister, who hath had no husband:

⁴But not even for the prince of his people shall he do any thing that may make him unclean.

⁵Neither shall they shave their head, nor their beard, nor make incisions in their flesh.

⁶They shall be holy to their God, and shall not profane his name: for they offer the burnt offering of the Lord, and the bread of their God, and therefore they shall be holy.

⁷They shall not take to wife a harlot or a vile prostitute, nor one that has been put away from her husband: because they are consecrated to their God,