Commentaire sur Le Lévitique 14:34

ונתתי נגע צרעת [WHEN YOU COME TO THE LAND …]I WILL PUT THE PLAGUE OF THE LEPROSY — This was an announcement to them that these plagues would come upon them (Sifra, Metzora, Section 5 4; Horayot 10a), because the Amorites concealed treasures of gold in the walls of their houses during the whole 40 years the Israelites were in the wilderness (in order that these might not possess them when they conquered Palestine,) and in consequence of the plague they would pull down the house and discover them (Leviticus Rabbah 17:6).

Scripture states with reference to plagues in houses, and ‘I’ shall put the plague of leprosy, in order to allude to the fact that it was G-d’s hand that did this, and not an act of nature at all, as I have explained.⁸⁰Above, 13:47. It states, When ye are come into the land of Canaan etc. in a house of the Land of your possession,⁸¹Verse 34 before us. because He is speaking to all Israel [since Moses and Aaron did not come into the Land]. Now it would have been proper that after the verse, And the Eternal spoke unto Moses and unto Aaron, saying,⁸²Verse 33. He should continue to state, “Speak ye unto the children of Israel.” But Scripture shortens the account since it is self-understood [that the command was to be given to the children of Israel who would enter the Land]. Or it may be that he spoke to them in the place of [i.e., as representing] all Israel, and hinted that the intention [of giving the commandment] now is merely to teach them all the laws of leprosy, and that they in turn should teach them to the priests, and Moses did not warn all Israel now [about these laws, as they did not apply until they came into the Land]. It was only those who came into the Land that he warned, Take heed in the plague of leprosy, that thou observe diligently etc.,⁸³Deuteronomy 24:8. See ibid., 1:3 where it says that the Book of Deuteronomy was said in the fortieth year, i.e., to those about to enter the Land. for it was to them that he commanded at first to take heed in these ordinances.

כי תבאו…ונתתי נגע צרעת, When you come to the land…and I will give a plague of "leprosy," etc. How can one describe the plague of "leprosy" breaking out on one's house as good news so that the Torah describes it as a gift from G'd? Why did the Torah not merely write: "when the walls of your houses develop certain stains, etc." in the same way as the Torah described such a skin disease in 13,9? Vayikra Rabbah 17,6 was conscious of this and explained that the Canaanites who heard that the Israelites were approaching hid their valuables inside the walls of their houses. When the walls would display signs of "leprosy," the Jewish owner would investigate and discover the hidden treasure. This is homiletics, of course. Rabbi Levy explains in that same Midrash that when G'd wishes to reprove us He does not immediately inflict pain on our bodies, but He first afflicts our houses, and in the event this does not help He afflicts our clothing. Only if we fail to respond to these two warnings does G'd inflict the plague on our bodies, i.e. our skin. When viewed in this light the affliction on the house is indeed a "gift" i.e. a demonstration of G'd's loving concern for us.