Leviticus 13:19-21

Revised Standard Version Catholic Edition

¹⁹ and in the place of the boil there comes a white swelling or a reddish-white spot, then it shall be shown to the priest; 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;