14:33-53 The leprosy in a house is unaccountable to us, as well as the leprosy in a garment; but now sin, where that reigns in a house, is a plague there, as it is in a heart. Masters of families should be aware, and afraid of the first appearance of sin in their families, and put it away, whatever it is. If the leprosy is got into the house, the infected part must be taken out. If it remain in the house, the whole must be pulled down. The owner had better be without a dwelling, than live in one that was infected. The leprosy of sin ruins families and churches. Thus sin is so interwoven with the human body, that it must be taken down by death.Then the priest shall come and look,.... On the seventh day of the second week; though, according to Maimonides (o), this was at the end of the third seven day, or on the nineteenth day from his first inspection into it; the seventh day being reckoned for the last of the first week, and the first of the second, and so on:

and, behold, if the plague be spread in the house; after all the above precaution is taken:

it is a fretting leprosy in the house; like that in the garment; see Gill on Leviticus 13:51,

it is unclean; and so not to be inhabited.

(o) Hilchot Tumaat Tzarat, c. 15. sect. 1, 2.