"Take heed in an outbreak of leprosy, that you carefully observe and do according to all that the priests, the Levites, shall teach you; just as I commanded them, so you shall be careful to do.
Deuteronomy 24:8
Surrounding context
24:7 "If a man is found kidnapping any of his brethren of the children of Israel, and mistreats him or sells him, then that kidnapper shall die; and you shall put away the evil from among you.
24:8 "Take heed in an outbreak of leprosy, that you carefully observe and do according to all that the priests, the Levites, shall teach you; just as I commanded them, so you shall be careful to do.
24:9 Remember what the LORD your God did to Miriam on the way when you came out of Egypt!