Ezekiel 44:21-23

JPS_ASV_Byz(i) 21 Neither shall any priest drink wine, when they enter into the inner court. 22 Neither shall they take for their wives a widow, nor her that is put away; but they shall take virgins of the seed of the house of Israel, or a widow that is the widow of a priest. 23 And they shall teach My people the difference between the holy and the common, and cause them to discern between the unclean and the clean.