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."

Cross References (ranked by relevance)

And that ye may put difference between holy and unholy, and between unclean and clean;

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

Then shall ye return, and discern between the righteous and the wicked, between him that serveth God and him that serveth him not.