Musar sobre Isaías 4:6

Therefore one must be very careful regarding the sanctity of the sukkah, for it is comprised of the two names, יהו"ה and אדנ"י. In particular, once the sukkah has been constructed in accordance with all it laws and in purity, one must not degrade it because it is a throne for the Holy One Blessed is He and His Shechinah. Thus the sukkah fulfills the role of a minor “temple,” just as the Holy Temple was called the “Completed Tabernacle [Sukkah].” This is in stark contrast with the attitude of those who treat the sukkah lightly and consider this commandment to be a great burden. They enter the sukkah and recite the blessings over the bread and the sukkah hurriedly and impatiently, and then leave. In this respect they resemble the members of the other nations who revile the sukkah and run out. Moreover, their blessing over the sukkah is in vain because the text of the blessing is “to sit [leisheiv] in the sukkah.” They believe that this means that they must sit there for a short while, after which they may leave. But they are in error because the expression, “to sit in the sukkah,” actually means to tarry there. Thus Rashi explains that the term “sitting” [yeshivah] means nothing other than “tarrying” (Vayikra 12:4; Devarim 9:9). Therefore I admonish every understanding person not to fall into this iniquity. Rather, when he enters the sukkah to eat, let him remain there until he has finished eating so that his blessing will not be in vain and so that he will not be reckoned among the revilers of the mitzvah. Then we will all merit to take shelter beneath the sukkah of the Leviasan, as it is stated, “And a sukkah will be for shade by day” (Yeshayahu 4:6). And the Holy One Blessed is He will cover us with the shade of His wings in the Completed Tabernacle [Sukkah] forever. Amein, so may it be His will.