Leviticus 23:40

then make an offering by fire to Yahweh, a burnt offering or a sacrifice to fulfill a special vow, or as a freewill offering or in your appointed times, to make a soothing aroma to Yahweh, from the herd or from the flock.

“There also you and your households shall eat before Yahweh your God, and be glad in all that you send forth your hand to do, in which Yahweh your God has blessed you.

“You shall celebrate the Feast of Booths seven days after you have gathered in from your threshing floor and your wine vat;

So Solomon celebrated the feast at that time, and all Israel with him, a great assembly from Lebo-hamath to the brook of Egypt, before Yahweh our God, for seven days and seven more days, even fourteen days.

They found written in the law how Yahweh had commanded by the hand of Moses that the sons of Israel should live in booths during the feast of the seventh month,

and that they should make the report heard and make a proclamation of it pass throughout all their cities and in Jerusalem, saying, “Go out to the hills, and bring olive branches and wild olive branches, myrtle branches, palm branches, and branches of other leafy trees, to make booths, as it is written.”

Upon the willows in the midst of it We hung our lyres.

And they will spring up among the grass Like poplars by streams of water.’

“And it shall be the prince’s part to provide the burnt offerings, the grain offerings, and the drink offerings, at the feasts, on the new moons, and on the sabbaths, at all the appointed times of the house of Israel; he shall provide the sin offering, the grain offering, the burnt offering, and the peace offerings, to make atonement for the house of Israel.”

“In the seventh month, on the fifteenth day of the month, at the feast, he shall provide like this, seven days for the sin offering, the burnt offering, the grain offering, and the oil.”

Then it will be that any who are left of all the nations that went against Jerusalem will go up from year to year to worship the King, Yahweh of hosts, and to celebrate the Feast of Booths.

After these things I looked, and behold, a great multitude which no one could count, from every nation and all tribes and peoples and tongues, standing before the throne and before the Lamb, clothed in white robes, and palm branches were in their hands;