As the leper was removed from the camp, so the leprous house is to be utterly pulled down; the house, the stones of it, and the timber thereof, and all the morter of the house; and all its materials carried forth eat of the city into an unclean place.
The leprous house conveys uncleanness to those that enter it, but of so slight a nature that it ceases with the evening, and requires only that the clothes of the wearer be washed. Such a regulation would have been ineffectual for preventing the spread of infection, if that had been its purpose.