Leviticus 13:18-23

18. The flesh also, in which, [even] in the skin thereof, was a boil, and is healed, 19. And in the place of the boil there be a white rising, or a bright spot, white, and somewhat reddish, and it be shewed to the priest; 20. And if, when the priest seeth it, behold, it [be] in sight lower than the skin, and the hair thereof be turned white; the priest shall pronounce him unclean: it [is] a plague of leprosy broken out of the boil. 21. But if the priest look on it, and, behold, [there be] no white hairs therein, and [if] it [be] not lower than the skin, but [be] somewhat dark; then the priest shall shut him up seven days: 22. And if it spread much abroad in the skin, then the priest shall pronounce him unclean: it [is] a plague. 23. But if the bright spot stay in his place, [and] spread not, it [is] a burning boil; and the priest shall pronounce him clean.

Leviticus 13:18-23 — KJV