3The priest shall examine the plague in the skin of the body. If the hair in the plague has turned white, and the appearance of the plague is deeper than the body’s skin, it is the plague of leprosy; so the priest shall examine him and pronounce him unclean.
4If the bright spot is white in the skin of his body, and its appearance isn’t deeper than the skin, and its hair hasn’t turned white, then the priest shall isolate the infected person for seven days.
5The priest shall examine him on the seventh day. Behold, if in his eyes the plague is arrested and the plague hasn’t spread in the skin, then the priest shall isolate him for seven more days.
6The priest shall examine him again on the seventh day. Behold, if the plague has faded and the plague hasn’t spread in the skin, then the priest shall pronounce him clean. It is a scab. He shall wash his clothes, and be clean.
7But if the scab spreads on the skin after he has shown himself to the priest for his cleansing, he shall show himself to the priest again.
8The priest shall examine him; and behold, if the scab has spread on the skin, then the priest shall pronounce him unclean. It is leprosy.
9“When the plague of leprosy is in a man, then he shall be brought to the priest;
10and the priest shall examine him. Behold, if there is a white swelling in the skin, and it has turned the hair white, and there is raw flesh in the swelling,
Leviticus 13
Leviticus 13:3-10