Nehemiah 8:12-14

ISV(i) 12 So all the people went to eat, to drink, to send something to those who had nothing, and to celebrate with great joy, because they understood the words that were being declared to them.
13 The Festival of Tents is Reinstituted
The next day, the heads of the families of all the people were gathered together, along with the priests and the descendants of Levi, to meet with Ezra the scribe in order to understand the words of the Law. 14 They found written in the Law that the LORD had commanded through Moses that the Israelis were to live in tents during the festival scheduled for the seventh month.