NET
23 Moreover, they will teach my people the difference between the holy and the common and show them how to distinguish between the ceremonially unclean and the clean.
Darby
23 And they shall teach my people [the difference] between holy and profane, and cause them to discern between unclean and clean.
KJV
23 And they shall teach my people [the difference] between the holy and profane, and cause them to discern between the unclean and the clean.