Leviticus 13:20-22

Revised Standard Version

²⁰ and the priest shall make an examination, and if it appears deeper than the skin and its hair has turned white, then the priest shall pronounce him unclean; it is the disease of leprosy, it has broken out in the boil. ²¹ But if the priest examines it, and the hair on it is not white and it is not deeper than the skin, but is dim, then the priest shall shut him up seven days; ²² and if it spreads in the skin, then the priest shall pronounce him unclean; it is diseased.