Ezekiel 44:19-23

And when they go forth into the utter court, even into the utter court to the people, they shall put off their garments wherein they ministered, and lay them in the holy chambers, and they shall put on other garments; and they shall not sanctify the people with their garments.

Neither shall they shave their heads, nor suffer their locks to grow long; they shall only poll their heads.

Neither shall any priest drink wine, when they enter into the inner court.

Neither shall they take for their wives a widow, nor her that is put away: but they shall take maidens of the seed of the house of Israel, or a widow that had a priest before.

And they shall teach my people the difference between the holy and profane, and cause them to discern between the unclean and the clean.