Exegetical and Hermeneutical Commentary of Leviticus 13:32
And in the seventh day the priest shall look on the plague: and, behold, [if] the scurf spread not, and there be in it no yellow hair, and the scurf [be] not in sight deeper than the skin;
And in the seventh day the priest shall look on the plague,…. To see whether it has got any deeper, or spread any further, and has any hair growing in it, and of what colour, that he might be also able to judge whether it was a leprosy or not:
and, behold, [if] the scall spread not; was neither got into the flesh, nor larger in the skin;
and there be in it no yellow hair; that is, a thin yellow hair, for such only, as Ben Gersom observes, was a sign of leprosy in scalls, as in Le 13:30; and the same writer observes, that “and” is here instead of “or”, and to be read, “or there be in it no yellow hair”; since a scall was pronounced unclean, either on account of thin yellow hair, or on account of spreading:
and the scall [be] not in sight deeper than the skin; but be just as it was when first looked upon.
Fuente: John Gill’s Exposition of the Entire Bible
If the mole had not spread by that time, and the two signs mentioned were not discernible, the person affected was to shave himself, but not to shave the nethek, the eruption or scurfy place, and the priest was to shut him up for seven days more, and then to look whether any alteration had taken place; and if not, to pronounce him clean, whereupon he was to wash his clothes (see Lev 13:6).
Fuente: Keil & Delitzsch Commentary on the Old Testament
(32) The scall be not in sight deeper than the skin.Better, the appearance of the scall is not deeper than the other skin. If at the expiration of the seven days quarantine, the priest, on examining the spot which had a resemblance to leprosy, finds that it has not developed those signs which this distemper always discloses within this time.
Fuente: Ellicott’s Commentary for English Readers (Old and New Testaments)
yellow hair: Lev 13:30, Mat 23:5, Luk 18:9-12, Rom 2:23