Leviticus 13:2-4

New Catholic Bible

² “When someone has a swelling or a scab or a spot on his skin, and it turns out to be leprosy, then he shall be brought to the priest Aaron or one of his sons who is a priest. ³ The priest shall examine the diseased spot on his skin. If the hair of the diseased spot has become white and the sore seems to be deeper than the surface of the skin, then the disease is leprosy. When the priest has examined it, he shall pronounce him unclean. ⁴ But if the spot on his skin is white and is not deeper than the skin and the hair on it has not become white, the priest shall quarantine the person with the sore for seven days.