In cases of infectious skin diseases, be careful to diligently follow everything the Levitical priests instruct you. Be careful to do as I have commanded them.
Jewish Publication Society of America Version (JPS1917) - Deuteronomy 24:8 >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.