³⁹ “Remember that this seven-day festival to the Lord—the Festival of Shelters—begins on the fifteenth day of the appointed month,^[a] after you have harvested all the produce of the land. The first day and the eighth day of the festival will be days of complete rest. ⁴⁰ On the first day gather branches from magnificent trees^[b]—palm fronds, boughs from leafy trees, and willows that grow by the streams. Then celebrate with joy before the Lord your God for seven days. ⁴¹ You must observe this festival to the Lord for seven days every year. This is a permanent law for you, and it must be observed in the appointed month^[c] from generation to generation.