Ezekiel 44:23

44:23 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.

Ezekiel 22:26

22:26 Her priests abuse my law and have desecrated my holy things. They do not distinguish between the holy and the profane, or recognize any distinction between the unclean and the clean. They ignore my Sabbaths and I am profaned in their midst.