Leviticus 23:41-43

American Standard Version

⁴¹ And ye shall keep it a feast unto Jehovah seven days in the year: it is a statute for ever throughout your generations; ye shall keep it in the seventh month. ⁴² Ye shall dwell in booths seven days; all that are home-born in Israel shall dwell in booths; ⁴³ that your generations may know that I made the children of Israel to dwell in booths, when I brought them out of the land of Egypt: I am Jehovah your God.