Nehemiah 8:13-14

13And on the second day were gathered together the heads of fathers’housesof all the people, the priests, and the Levites, unto Ezra the scribe, even to give attention to the words of the law. 14And they found written in the law, how that Jehovah had commanded by Moses, that the children of Israel should dwell in booths in the feast of the seventh month;