Leviticus 13:18-23 NIV

18 "When someone has a boil1 on his skin and it heals,

References for Leviticus 13:18

19 and in the place where the boil was, a white swelling or reddish-white2 spot3 appears, he must present himself to the priest.

References for Leviticus 13:19

      20 The priest is to examine it, and if it appears to be more than skin deep and the hair in it has turned white, the priest shall pronounce him unclean. It is an infectious skin disease4 that has broken out where the boil was.

      References for Leviticus 13:20

          21 But if, when the priest examines it, there is no white hair in it and it is not more than skin deep and has faded, then the priest is to put him in isolation for seven days.
          22 If it is spreading in the skin, the priest shall pronounce him unclean; it is infectious.
          23 But if the spot is unchanged and has not spread, it is only a scar from the boil, and the priest shall pronounce him clean.5

          References for Leviticus 13:23