'Difference' in the Bible

Her priests have done violence to My law and have profaned My holy things; they have made no distinction between the holy and the profane, and they have not taught the difference between the unclean and the clean; and they hide their eyes from My sabbaths, and I am profaned among them.

Moreover, they shall teach My people the difference between the holy and the profane, and cause them to discern between the unclean and the clean.