Tanach · Rishonim on Tanach · Ramban · Torah
Ramban on Leviticus 14:53/רמב"ן על ויקרא י״ד:נ״ג
אוְכִפֶּר עַל הַבַּיִת וְטָהֵר הִנֵּה הַכַּפָּרָה הַזֹּאת בַּצִּפּוֹר הַמִּשְׁתַּלַּחַת, שֶׁתִּשָּׂא הַצִּפּוֹר אֶת כָּל עֲוֹנֹתָיו אֶל מִחוּץ לָעִיר אֶל פְּנֵי הַשָּׂדֶה, כְּעִנְיַן הַכַּפָּרָה בְּשָׂעִיר הַמִּשְׁתַּלֵּחַ. וּבַעֲבוּר שֶׁאֵין עֹנֶשׁ הַנֶּגַע הַנִּרְאֶה בְּבֵיתוֹ שֶׁל אָדָם כְּעֹנֶשׁ הַנֶּגַע שֶׁבְּגוּפוֹ, לֹא הִצְרִיכוֹ הַכָּתוּב לְאָשָׁם וְחַטָּאת, כִּי דַּי לוֹ בַּכַּפָּרָה הָרִאשׁוֹנָה שֶׁיָּבִיא הַמְּצֹרָע לְטָהֳרָתוֹ, שֶׁהֵם הַצִּפֳּרִים וְעֵץ הָאֶרֶז וְהָאֵזוֹב:
1AND HE SHALL LET GO THE LIVING BIRD OUT OF THE CITY INTO THE OPEN FIELD, AND MAKE ATONEMENT FOR THE HOUSE, AND IT SHALL BE CLEAN. Now this atonement was effected by the bird which is to be sent away, the bird carrying away all his sins out of the city into the open field, like the atonement effected by the goat that is to be sent away.114 Now since the punishment of the plague which appears in a person’s house is unlike [i.e., less in severity than] that of a plague which afflicts his body, Scripture did not make it necessary for him [the owner of the house] to bring a guilt-offering and sin-offering [as it required for the purification of a leper], because the first [stage of] atonement that the leper brings for his purification — namely, the birds, the cedar-wood and the hyssop115 — is sufficient for him [i.e., the owner of the house].