Long Service was held as Ezra read the Torah and teachers taught on it so all would understand.

Nehemiah 8:1. And all the people gathered themselves together as one man in the street that was in front of the Water Gate and they spoke to Ezra the scribe to bring the book of the Torah (Teaching) of Moses, which the LORD* had commanded to Israel. 2. And Ezra the priest brought the Torah (Teaching) before the congregation, both men and women, and all who could hear with understanding on the first day of the seventh month. 3. And he read there before the open place that was before the Water Gate from the daylight until midday, before the men and the women and those who could understand, and the ears of all the people were attentive to the book of the Torah (Teaching). 4. And Ezra the scribe stood on a platform of wood, which they had made for the purpose and beside him stood Mattithiah, Shema, Anaiah, Urijah, Hilkiah, and Maaseiah on his right hand; and on his left hand, Pedaiah, Mishael, Malchiah, Hashum, Hashbaddana, Zechariah, and Meshullam. 5. And Ezra opened the scroll in the sight of all the people; (for he was above all the people) and when he opened it, all the people stood up 6. and Ezra blessed the LORD*, the great God. And all the people answered, Amen. Amen! while lifting up their hands, and they bowed their heads and worshipped the LORD* with their faces to the ground. 7. Also Yeshua, Bani, Sherebiah, Jamin, Akkub, Shabbethai, Hodijah, Maaseiah, Kelita, Azariah, Jozabad, Hanan, Pelaiah, and the Levites caused the people to understand the Torah (Teaching), and the people stood in their place. 8. So they read in the scroll the Torah (Teaching) of God distinctly and gave the sense and caused them to understand the reading.