peak to the people of Israel, saying, On the fifteenth day of this seventh month and for seven days is the Feast of Booths [Sukkot] to the LORD. (Leviticus 23:34 ESV)
On the fifteenth day of the seventh month, when you have gathered in the produce of the land, you shall celebrate the feast of the LORD seven days. On the first day shall be a solemn rest, and on the eighth day shall be a solemn rest. And you shall take on the first day the fruit of splendid trees, branches of palm trees and boughs of leafy trees and willows of the brook, and you shall rejoice before the LORD your God seven days. You shall celebrate it as a feast to the LORD for seven days in the year. It is a statute forever throughout your generations; you shall celebrate it in the seventh month. You shall dwell in booths [sukkot] for seven days. All native Israelites shall dwell in booths [sukkot], that your generations may know that I made the people of Israel dwell in booths [sukkot] when I brought them out of the land of Egypt: I am the LORD your God. (Leviticus 23:39-43 ESV)
Then everyone who survives of all the nations that have come against Jerusalem shall go up year after year to worship the King, the Lord of hosts, and to keep the Feast of Booths. And if any of the families of the earth do not go up to Jerusalem to worship the King, the Lord of hosts, there will be no rain on them. And if the family of Egypt does not go up and present themselves, then on them there shall be no rain; there shall be the plague with which the Lord afflicts the nations that do not go up to keep the Feast of Booths. This shall be the punishment to Egypt and the punishment to all the nations that do not go up to keep the Feast of Booths.
Zechariah 14:16-19 ESV