Leviticus 23:40-43

EJ2000(i) 40 And on the first day ye shall take branches with fruit of a beautiful tree, palm branches and the boughs of thick trees and willows of the brook; and ye shall rejoice before the LORD your God seven days. 41 And ye shall keep this feast unto the LORD for seven days each year. It shall be a perpetual statute for your ages; ye shall celebrate it in the seventh month. 42 Ye shall dwell in tabernacles seven days; all that are natural of Israel shall dwell in booths, 43 that your descendants may know that I made the sons of Israel to dwell in tabernacles when I brought them out of the land of Egypt. I AM your God.