Lévitique 23:43

That your generations may know how, under the shadow of the cloud of glory, I made the sons of Israel to dwell at the time that I brought them out redeemed from the land of Mizraim.

in huts After the crossing of the Red Sea they lived in booths (and did so even in the Sinai Desert, where they stayed for nearly a year), following the custom of all military camps. Any perceptive person who travels from Arabia to Edom will understand the reason for this commandment. This festival, like the others, commemorates the Exodus from Egypt. You might ask: Why must this commandment be observed in Tishrey? One possible answer is that although God’s clouds covered the camp during the day, and protected it from the sun, it was necessary to construct huts on account of the cold from the time of Tishrey onwards.

THAT I MADE THE CHILDREN OF ISRAEL TO ABIDE IN BOOTHS. “This means the clouds of Glory” [which surrounded the camp of the Israelites during their stay in the wilderness]. This is Rashi’s language. And in my opinion this is the correct interpretation [even] according to the literal sense of Scripture, for He commanded that the generations should know all the great deeds of the Eternal which He did wondrously with them, that He made them dwell in the clouds of His Glory like in a booth, similar to what is said, And the Eternal will create over the whole habitation of Mount Zion, and over her assemblies, a cloud and smoke by day, and the shining of a flaming fire by night; for over all the glory shall be a canopy. And there shall be a ‘succah’ (pavilion) for a shadow in the day-time from the heat etc. And since Scripture has already explained that the cloud of the Eternal was upon them by day and the pillar of fire by night,, 13:22. He just says here, that I made the children of Israel to abide in booths, [without explaining what kind of booths, but meaning] “I made them booths out of the clouds of My Glory to protect them.” Thus He commanded that at the beginning of the summer season we are to remember the exodus from Egypt by [calling] its month [the first of the months], and by observing its festival [of Passover], and He further commanded the remembrance of the continuous miracle which was done for them throughout the days of their stay in the wilderness, at the beginning of the winter season. And according to the opinion of the Sage who says were “clouds of Glory” [mentioned above] is the opinion of Rabbi Eliezer (ibid.). that they made themselves booths in the literal sense, [we must explain that the reason why this commandment is to be observed at the onset of the winter season], is because they began to make them at the beginning of the winter, on account of the cold, as is customary in camps, and therefore He commanded [that we also make] them at that time. The sense of the remembrance is that they should know and remember that they were in the wilderness, and did not live in homes, and they found no city of habitation for forty years, but G-d was with them and they lacked nothing.

למען ידעו דורותיכם, the plain meaning of the text is in agreement with the view expressed in Sukkah 11 according to which the word סוכה is to be understood literally. The meaning of the verse then would be: “construct for yourselves the festival of huts when you gather in your grain and grape harvest (Deuteronomy 16,13) You are to do this at the time you gather in the produce of the earth and your houses are filled with all the good things the earth produces such a grain, grape, wine and oil (olives). This is to be done in order that you will remember” כי בסוכות הושבתי את בני ישראל, in the desert for a period of 40 years when they neither owned land nor found themselves in a cultivated part of the earth. Remembering all this you will have ample reason to be grateful to the One Who has provided you with all of your present wealth and comfort. You must not fall into the trap of thinking that all this success is due to your own efforts. We find a similar thought expressed in Deuteronomy 8,2-3 “you shall remember all the way which the Lord your G’d has led you for these last 40 years…and He fed you the manna, etc.” Why do I command you to do all this? For the Lord your G’d brings you to a good …and you will eat and be satisfied, etc. As a result your heart may become haughty and you will credit yourself with all this as your own achievement. (Deuteronomy 8 7-18) In order that this will not happen and to show that the Israelites G’d’s part in their success they will move out of their solid houses as a reminder to the time when they had not been blessed with any of these benefits which they enjoy ever since inheriting the land of their forefathers. They acknowledge that it is G’d Who provides the Jewish people with the ability and valor.

אני ה' אלוקיכם, the meaning of the statement, repeated again and again, is that the reason that G’d requests these symbolic deeds from us is that by performing them we insure that He will not ever turn His benevolent eyes away from us.