Deuteronomy 24:8
Be careful in the plague of leprosy, that you observe diligently and do according to all that the Levitical priests teach you. As I commanded them, so you shall observe to do.
World English Bible (Public Domain)
In context
Before · Deuteronomy 24:6–7
6No man shall take the mill or the upper millstone as a pledge, for he takes a life in pledge. 7If a man is found stealing any of his brothers of the children of Israel, and he deals with him as a slave, or sells him, then that thief shall die. So you shall remove the evil from among you.
8Be careful in the plague of leprosy, that you observe diligently and do according to all that the Levitical priests teach you. As I commanded them, so you shall observe to do.