Leviticus 13:20-21

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:

Leviticus 13:20-21 Meaning and Commentary

INTRODUCTION TO LEVITICUS 13

In this chapter an account is given of the various sorts of leprosy, and the rules by which they were to be judged of, Le 13:1-3 of the bright spot and scab, Le 13:4-8 of the rising or swelling, Le 13:9-17 of the bile or hot ulcer, Le 13:18-23 of the hot burning or inflammation, Le 13:24-28 of the plague of the scall, Le 13:29-37 of bright spots or blisters, Le 13:38,39 and of shedding the hair, and baldness, Le 13:40-44 of what the leper was to do, and to be done unto, Le 13:45,46 of the leprosy in garments made of linen, woollen, or of skin, Le 13:47-59.

The King James Version is in the public domain.