Leviticus 13:20 in the King James Version
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.
Context
19 and in the place of the boil there is a white swelling, or a bright spot, reddish-white, then it shall be shown to the priest.
20 The priest shall examine it. Behold, if its appearance is deeper than the skin, and its hair has turned white, then the priest shall pronounce him unclean. It is the plague of leprosy. It has broken out in the boil.
21 But if the priest examines it, and behold, there are no white hairs in it, and it isn’t deeper than the skin, but is dim, then the priest shall isolate him seven days.