⁵⁷ To teach when it is unclean, and when it is clean: this is the law of leprosy.

¹⁰ And that ye may put difference between holy and unholy, and between unclean and clean;

⁸ Take heed in the plague of leprosy, that thou observe diligently, and do according to all that the priests the Levites shall teach you: as I commanded them, so ye shall observe to do.

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.

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.