the priest is to examine him, and if the scaly outbreak has spread on the skin, the priest need not look for yellow hair; the person is unclean.
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
If a man also, or a woman,.... One or the other, for the law concerning leprosy respecteth both: have in the skin of their flesh bright spots; and them only; not any rising or swelling, nor scab, nor scall, nor boil, nor burning, only bright spots, a sort of freckles or morphew: even white bright spots; these, Ben Gersom observes, are white spots, but not...
Then the priest shall look on him: and, behold, if the scall be spread in the skin, the priest shall not seek for yellow hair; he [is] unclean. (k) He shall not care whether the yellow hair is there or not.