When a man shall have in the skin of his flesh a swelling, a scab, or bright spot, and it be in the skin of his flesh like the disease of leprosy; then he shall be brought unto Aaron the priest, or unto one of his sons the priests:
And the priest shall look upon him the seventh day: and if it is spread much abroad in the skin, then the priest shall pronounce him unclean: it is the disease of leprosy.
And the priest shall look on him again the seventh day: and, behold, if the disease is somewhat dark, and the disease spreads not in the skin, the priest shall pronounce him clean: it is but a scab: and he shall wash his clothes, and be clean.