עקידת יצחק — טומאות הבאות מן הגוף / חמשה מיני נגעים

Q — Why does the Torah treat tumos that arise from within the body — childbirth, the five forms of nega? Why this ordering of impurities? What unites yoledes, skin, head and beard, garments, and houses?

A — These impurities issue from a person's own body to signify defects rooted in the nefesh and in conduct — tzaraas, Chazal teach, follows lashon hara and the like — so the bodily mark externalizes an inner blemish. The graded forms, from flesh to garment to house, trace how a spiritual flaw radiates outward through a person's domain. Their purification comes through tikkun, not medicine: the kohen's pronouncement and the process of teshuvah, because the nega's purpose was always to summon repair of the soul that produced it.