The Feast of Tabernacles (Sukkot) is a Jewish festival associated with the commemoration of the Israelites’ wanderings in the desert and their total dependence on G-d support. As one of the last prophets, much of Zechariah’s prophecies speak of the time of Moshiach and the dramatic events that will Happen. But in the Messianic era, it will have significance and this holiday will be honored by all nations.
This prophecy is mentioned in Zechariah 14:16-17: “Then everyone who is left of all the nations that came against Jerusalem shall go up from year to year to worship the King…. and to keep the Feast of Tabernacles.” The Feast of Tabernacles is a Jewish festival however, Gentiles will bring burnt offerings to the Third Holy Temple in Jerusalem.
With that being said, nowadays Gentiles are not obligated to dwell in the Sukkah. They do not have to observe this holiday by sitting in the sukkah. However, if they want to get a reward for sitting in the sukkah, they may do so but they have to be aware that it is not part of the 7 commandments or a religious obligation for them at all, as it is prohibited for them to make a new religion. (The divine code chapter 3:3)
The nations of the world who repented from their ways will come to Jerusalem each year on Sukkot to worship G-d and to celebrate the holiday. Any family or nation that does so will be blessed with life-giving rain for their crops, while those who fail to come will not have rain on their fields. In the future nations will put aside their differences and conflicts to come together in worship and celebration of G-d’s commandments. It’s a vision of global peace, unity, and spiritual harmony that only King Moshiach will be able to bring to all humanity. The primary message from this prophecy is the universal worship of G-d among all nations who will acknowledge the divine presence and celebrate the Feast of Tabernacles.