A.D. 220 – 1849 4 witnesses
“Thus he wished us to understand that the man who is changed from his former carnal state to the whiteness of faith (which the world considers a blemish and a stain) and who is completely renewed is clean. He is no longer spotted, no longer mottled with both the old and the new.”
“Then the priest shall consider,.... Look wistly upon it, and well weigh the matter in his own mind, that he may make a true judgment and pronounce a right sentence: and, behold, if the leprosy have covered all his flesh; from head to foot, so that no quick, raw, or sound flesh appear in him: he shall pronounce him clean that hath the plague; not clean from a leprosy he is covered with; but that he is free from pollution by it, and under no obligation to bring his offering, or to perform, or have performed on him any of the rites and ceremonies used in cleansing of the leper: it is all turned white; his skin and flesh with white bright spots, scabs and swellings, and no raw and red flesh appears: he is clean; in a ceremonial sense: this may seem strange, that one that had a bright spot, or a white swelling, or a scab that spreads, a single one of these, or here and there one, should be unclean, and yet, if covered over with them, should be clean; the reason in nature is, because this shows a good healthful inward constitution, which throws out all its ill humours externally, whereby health is preserved; as we see in persons that have the measles or smallpox, or such like distempers, if they stick in the skin, and only here and there one rises up in a tumour, and to an head, it is a bad sign; but if they come out kindly and well, though they cover the whole body, things are very promising: the mystical or spiritual meaning of this is, that when a man sees himself to be a sinful creature, all over covered with sin, and no part free, and disclaims all righteousness of his own to justify him before God, but wholly trusts to, and depends upon the grace of God for salvation, and the righteousness of Christ for his acceptance with God; he becomes clean through the grace of God and the blood and righteousness of Christ.”
“If the leprosy have covered all his flesh, he shall pronounce him clean - Why is it that the partial leper was pronounced unclean, and the person totally covered with the disease clean? This was probably owing to a different species or stage of the disease; the partial disease was contagious, the total not contagious. That there are two different species or degrees of the same disease described here, is sufficiently evident. In one, the body was all covered with a white enamelled scurf; in the other, there was a quick raw flesh in the risings. On this account the one might be deemed unclean, i. e., contagious, the other not; for contact with the quick raw flesh would be more likely to communicate the disease than the touch of the hard dry scurf. The ichor proceeding from the former, when brought into contact with the flesh of another, would soon be taken into the constitution by means of the absorbent vessels; but where the whole surface was perfectly dry, the absorbent vessels of another person coming in contact with the diseased man could imbibe nothing, and therefore there was comparatively no danger of infection. Hence that species or stage of the disease that exhibited the quick raw rising was capable of conveying the infection for the reasons already assigned, when the other was not. Dr. Mead thus accounts for the circumstance mentioned in the text. See on Lev 13:18 (note). As the leprosy infected bodies, clothes, and even the walls of houses, is it not rational to suppose that it was occasioned by a species of animalcula or vermin burrowing under the skin? Of this opinion there are some learned supporters.”
“Clean. The white leprosy causeth no itching. (Gorrheus.; Celsus, v. 28.) Theodoret (q. 16,) says, it is incurable; and therefore, the person infected is not shut up, out of pity. So St. Paul (1 Corinthians v. 11,) forbids us to eat with a dissolute Christian, while he allows us to have commerce with infidels, though they be wholly corrupt. But others assert, it is not so difficult to cure as that which is partial, ver. 14. The hand of Moses was stricken with this white leprosy, Exodus iv. 6. (Calmet) — This species is not so contagious. (Menochius)”
The in-app commentary runs from the Fathers to the early-modern record, then stops — that's where the public-domain sources end, not where the reading does. For the modern reading, follow the sources directly.