Leviticus 23:42
41. And ye shall keep it a feast unto the LORD seven days in the year. It shall be a statute for ever in your generations: ye shall celebrate it in the seventh month.42. Ye shall dwell in booths seven days; all that are Israelites born 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 the LORD your God.
Leviticus თავი 23