Leviticus 14:57
to teach when a thing is unclean or clean. This is the law of leprosy."
Leviticus 10:10
that ye may put difference between holy and unholy, and between unclean and clean,
Deuteronomy 24:8
Take heed to thyself as concerning the plague of leprosy, that thou observe diligently to do according to all that the priests the Levites shall teach thee, as I commanded them so ye shall observe to do.
Jeremiah 15:19
Upon these words, thus said the LORD unto me, "If thou wilt turn again, I shall set thee in my service: and if thou wilt take out the thing that is precious from the vile, thou shalt be even as mine own mouth. They shall convert unto thee, but turn not thou unto them:
Ezekiel 44:23
They shall show my people the difference between the holy and unholy, betwixt the clean and unclean.