Leviticus 23:41-43

41Celebrate this as a festival to the Lord for seven days each year. This is to be a lasting ordinance for the generations to come; celebrate it in the seventh month.

42Live in temporary shelters for seven days: All native-born Israelites are to live in such shelters

43so your descendants will know that I had the Israelites live in temporary shelters when I brought them out of Egypt. I am the Lord your God.’ ”