'Unclean and the Clean' in the Bible

to make a difference between the unclean and the clean, and between the creature that may be eaten and the creature that may not be eaten.

Even as the gazelle and the hart is eaten, so you shall eat them. The unclean and the clean shall eat of them alike.

You shall eat it inside your gates. The unclean and the clean shall eat it alike, as the gazelle, and as the hart.

Her priests have broken My Law and have defiled My holy things. They have put no difference between the holy and the common, and have not taught between the unclean and the clean, and have hidden their eyes from My sabbaths, and I am defiled among them.

And they shall teach My people to discern between the holy and common, and between the unclean and the clean.