Nehemiah 8:13-15

13And on the second day were gathered together the heads of the fathers of all the people, the priests, and the Levites, to Ezra the scribe, even to understand the words of the law.1 14And they found written in the law which the LORD had commanded by Moses, that the children of Israel should dwell in booths in the feast of the seventh month:2 15And that they should declare and proclaim in all their cities, and in Jerusalem, saying, Go forth to the mount, and fetch olive branches, and pine branches, and myrtle branches, and palm branches, and branches of thick trees, to make booths, as it is written.