Leviticus 14:37

In the walls of the house this was an extraordinary judgment of God peculiar to this people, either as a punishment of their sins, which were much more sinful and inexcusable than the sins of other nations; or as a special mean and help to repentance, which God afforded to them above other people; or as a document of the mischievous nature of sin, typified by leprosy, which did not only destroy persons, but their habitations also: see Malachi 5:4. With hollow strakes, such as were in the bodies of leprous persons, Leviticus 13:3.