Leviticus 13:18-28

“If the body develops a boil in the skin, and it is healed, and in the place of the boil there comes a white swelling or a bright spot, reddish-white, then it shall be shown to the priest; and if, when the priest sees it, it indeed appears deeper than the skin, and its hair has turned white, the priest shall pronounce him unclean. It is a leprous sore which has broken out of the boil. But if the priest examines it, and indeed there are no white hairs in it, and it is not deeper than the skin, but has faded, then the priest shall isolate him seven days; and if it should at all spread over the skin, then the priest shall pronounce him unclean. It is a leprous sore. But if the bright spot stays in one place, and has not spread, it is the scar of the boil; and the priest shall pronounce him clean. “Or if the body receives a burn on its skin by fire, and the raw flesh of the burn becomes a bright spot, reddish-white or white, then the priest shall examine it; and indeed if the hair of the bright spot has turned white, and it appears deeper than the skin, it is leprosy broken out in the burn. Therefore the priest shall pronounce him unclean. It is a leprous sore. But if the priest examines it, and indeed there are no white hairs in the bright spot, and it is not deeper than the skin, but has faded, then the priest shall isolate him seven days. And the priest shall examine him on the seventh day. If it has at all spread over the skin, then the priest shall pronounce him unclean. It is a leprous sore. But if the bright spot stays in one place, and has not spread on the skin, but has faded, it is a swelling from the burn. The priest shall pronounce him clean, for it is the scar from the burn.