Essay על דברים 24:8

As detailed in Lev. 13–15, tzaraat was some kind of skin condition that rendered a person temporarily unfit to be in the sacred camp. It was formerly identified with, and translated as, leprosy, but that is now felt to be incorrect by virtually all scholars. The law recurs here, among examples of injustice, because the disease was often viewed as the result of a person’s wrongful behaviors.