Leviticus 13:3-6 ▼

3 And the priest shall look on the plague in the skin of the flesh: and [when] the hair in the plague is turned white, and the plague in sight [be] deeper than the skin of his flesh, it [is] a plague of leprosy: and the priest shall look on him, and pronounce him unclean.

4 If the bright spot [be] white in the skin of his flesh, and in sight [be] not deeper than the skin, and the hair thereof be not turned white; then the priest shall shut up [him that hath] the plague seven days:

5 And the priest shall look on him the seventh day: and, behold, [if] the plague in his sight be at a stay, [and] the plague spread not in the skin; then the priest shall shut him up seven days more:

6 And the priest shall look on him again the seventh day: and, behold, [if] the plague [be] somewhat dark, [and] the plague spread not in the skin, the priest shall pronounce him clean: it [is but] a scab: and he shall wash his clothes, and be clean.