וְאֶת־עַמִּ֣י יוֹר֔וּ בֵּ֥ין קֹ֖דֶשׁ לְחֹ֑ל וּבֵין־טָמֵ֥א לְטָה֖וֹר יוֹדִעֻֽם׃
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.
Read halakhic rulings (Jewish law) on Ezekiel 44:23: and classical halakhic sources.