Leviticus 13:27-37

²⁷Then the priest must examine him on the seventh day. If it has spread widely in the skin, then the priest must pronounce him unclean. It is an infectious disease.

²⁸If the spot stays in its place and has not spread in the skin but has faded, then it is a swelling from the burn, and the priest must pronounce him clean, for it is nothing more than the scar of the burn.

²⁹If a man or woman has an infectious disease on the head or chin,

³⁰then the priest must examine the person for an infectious disease to see if it appears to be deeper than the skin, and if there is yellow, thin hair in it. If there is, then the priest must pronounce him unclean. It is an itch, an infectious disease on the head or the chin.

³¹If the priest examines the itching disease and sees that it is not under the skin, and if there is no black hair in it, then the priest will isolate the person with the itching disease for seven days.

³²On the seventh day the priest will examine the disease to see if it has spread. If there is no yellow hair, and if the disease appears to be only skin deep,

³³then he must be shaved, but the diseased area must not be shaved, and the priest must isolate the person with the itching disease for seven more days.

³⁴On the seventh day the priest will examine the disease to see if it has stopped spreading in the skin. If it appears to be no deeper than the skin, then the priest must pronounce him clean. The person must wash his clothes, and then he will be clean.

³⁵But if the itching disease has spread widely in the skin after the priest said he was clean,

³⁶then the priest must examine him again. If the disease has spread in the skin, the priest does not need to seek for yellow hair. The person is unclean.

³⁷But if in the priest's view the itching disease has stopped spreading and black hair has grown in the area, then the disease has healed. He is clean, and the priest must pronounce him clean.