Leviticus 13:18-23

18“When someone’s body has a boil on its skin and it heals,

19and in the place of the boil there is a white swelling or a reddish white bright spot, he must show himself to the priest.

20The priest will then examine it, and if it appears to be deeper than the skin and its hair has turned white, then the priest is to pronounce the person unclean. It is a diseased infection that has broken out in the boil.

21If, however, the priest examines it, and there is no white hair in it, it is not deeper than the skin, and it has faded, then the priest is to quarantine him for seven days.

22If it is spreading further on the skin, then the priest is to pronounce him unclean. It is an infection.

23But if the bright spot stays in its place and has not spread, it is the scar of the boil, so the priest is to pronounce him clean.