Leviticus 23:44 DBY

⁴²  In booths shall ye dwell seven days; all born in Israel shall dwell in booths;

⁴³  that your generations may know that I caused the children of Israel to dwell in booths, when I brought them out of the land of Egypt: I am Jehovah your God.

⁴⁴  And Moses declared the set feasts of Jehovah to the children of Israel.