Leviticus 13:29–37

²⁹“When a man or woman has an infection on the head or chin, ³⁰the priest must examine the infection. If it appears to be deeper than the skin, ^vand the hair in it is yellow and sparse, the priest must pronounce the person unclean. It is a scaly outbreak, ^wa skin disease of the head or chin. ³¹When the priest examines the scaly infection, if it does not appear to be deeper than the skin, and there is no black hair in it, the priest must quarantine the person with the scaly infection for seven days. ³²The priest will reexamine the infection on the seventh day. If the scaly outbreak has not spread and there is no yellow hair in it and it does not appear to be deeper than the skin, ³³the person must shave himself ^xbut not shave the scaly area. Then the priest must quarantine the person who has the scaly outbreak for another seven days. ³⁴The priest will examine the scaly outbreak on the seventh day, and if it has not spread on the skin and does not appear to be deeper than the skin, the priest is to pronounce the person clean. He is to wash his clothes, and he will be clean. ³⁵But if the scaly outbreak spreads further on the skin after his cleansing, ³⁶the priest is to examine the person. If the scaly outbreak has spread on the skin, the priest does not need to look for yellow hair; the person is unclean. ³⁷But if as far as he can see, the scaly outbreak remains unchanged and black hair has grown in it, then it has healed; he is clean. The priest is to pronounce the person clean.