Leviticus 13:22

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.

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:

But if the bright spot stay in his place, [and] spread not, it [is] a burning boil; and the priest shall pronounce him clean.

Or if there be [any] flesh, in the skin whereof [there is] a hot burning, and the quick [flesh] that burneth have a white bright spot, somewhat reddish, or white;