But if the scall be in his sight at a stay, and that there is black hair grown up therein; the scall is healed, he is clean: and the priest shall pronounce him clean.
The priest is here instructed what judgment to make if there was any appearance of a leprosy, either, 1. In an old ulcer, or bile, that has been healed, Lev 13:18, etc. When old sores, that seemed to be cured, break out again, it is to be feared there is a leprosy in them; such is the danger of those who, having escaped the pollutions...
Commenting on Leviticus 13:18-37
Then the priest shall look,.... Upon the man or woman that has these spots, and upon the spots themselves, and examine them of what kind they are: and, behold, if the bright spots in the skin of their flesh be darkish white; their whiteness is not strong, as Jarchi observes; but dusky and obscure, or "contracted" (w); small white spots, not large and spreading: it...
Lev 13:37 But if, on the contrary, the eruption stood (see Lev 13:5), and black hair grew out of it, he was healed, and the person affected was to be declared clean.