33 Adonai spoke to Moses saying: 34 “Speak to Bnei-Yisrael, and say, On the fifteenth day of this seventh month is the Feast of Sukkot, for seven days to Adonai. [g] 35 On the first day there is to be a holy convocation—you are to do no laborious work. 36 For seven days you are to bring an offering by fire to Adonai. The eighth day will be a holy convocation to you, and you are to bring an offering by fire to Adonai. It is a solemn assembly—you should do no laborious work.
37 “These are the moadim of Adonai, which you are to proclaim to be holy convocations, to present an offering by fire to Adonai—a burnt offering, a grain offering, a sacrifice and drink offerings, each on its own day, 38 besides those of the Shabbatot of Adonai and besides your gifts, all your vows and all your freewill offerings which you give to Adonai.
39 “So on the fifteenth day of the seventh month, when you have gathered in the fruits of the land, you are to keep the Feast of Adonai for seven days. The first day is to be a Shabbat rest, and the eighth day will also be a Shabbat rest. 40 On the first day you are to take choice fruit of trees, branches of palm trees,[h] boughs of leafy trees, and willows of the brook, and rejoice before Adonai your God for seven days. 41 You are to celebrate it as a festival to Adonai for seven days in the year. It is a statute forever throughout your generations—you are to celebrate it in the seventh month. 42 You are to live in sukkot for seven days. All the native-born in Israel are to live in sukkot, 43 so that your generations may know that I had Bnei-Yisrael to dwell in sukkot when I brought them out of the land of Egypt. I am Adonai your God.”
Sukkot, besides being a celebration of the fall harvest, is also understood to be a prophetic picture of the Kingdom of Messiah. We build our Sukkot/temporary huts to remind us of the great truth that the day is coming when Messiah will “dwell or tabernacle” in our midst and fulfill the promises as the son of David.