Leviticus 13:18–28

¹⁸“When a boil appears on the skin^h of someone’s bodyⁱ and it heals, ¹⁹and a white swelling or a reddish-white spot develops where the boil was, the person is to present himself to the priest. ²⁰The priest will make an examination, and if the spot seems to be beneath the skin and the hair in it has turned white, the priest must pronounce him unclean; it is a case of serious skin disease that has broken out in the boil. ²¹But when the priest examines it, if there is no white hair in it, and it is not beneath the skin but is faded, the priest will quarantine him seven days. ²²If it spreads further on the skin, the priest must pronounce him unclean; it is in fact a disease. ²³But if the spot remains where it is and does not spread, it is only the scar from the boil. The priest is to pronounce him clean.

²⁴“When there is a burn on the skin of one’s body produced by fire, and the patch made raw by the burn becomes reddish-white or white, ²⁵the priest is to examine it. If the hair in the spot has turned white and the spot appears to be deeper than the skin, it is a serious skin disease that has broken out in the burn. The priest must pronounce him unclean; it is a serious skin disease. ²⁶But when the priest examines it, if there is no white hair in the spot and it is not beneath the skin but is faded, the priest will quarantine him seven days. ²⁷The priest will reexamine him on the seventh day. If it has spread further on the skin, the priest must pronounce him unclean; it is in fact a case of serious skin disease. ²⁸But if the spot has remained where it was and has not spread on the skin but is faded, it is the swelling from the burn. The priest is to pronounce him clean, for it is only the scar from the burn.