Leviticus 11:47 To make a difference between the unclean and the clean, and between the beast that may be eaten and the beast that may not be eaten.

Leviticus 20:25 Ye shall therefore put difference between clean beasts and unclean, and between unclean fowls and clean: and ye shall not make your souls abominable by beast, or by fowl, or by any manner of living thing that creepeth on the ground, which I have separated from you as unclean.

Ezekiel 44:23 And they shall teach my people the difference between the holy and profane, and cause them to discern between the unclean and the clean.

Ezekiel 22:26 Her priests have violated my law, and have profaned mine holy things: they have put no difference between the holy and profane, neither have they shewed difference between the unclean and the clean, and have hid their eyes from my sabbaths, and I am profaned among them.

Jeremiah 15:19 ¶Therefore thus saith the LORD, If thou return, then will I bring thee again, and thou shalt stand before me: and if thou take forth the precious from the vile, thou shalt be as my mouth: let them return unto thee; but return not thou unto them.