The Feast of Tabernacles: The Law Publicly Read Every Seventh Year At

Then Moses commanded them, “At the end of every seven years, at the appointed time in the year of remission of debt, during the Feast of Tabernacles, …

Day after day, from the first day to the last, Ezra read from the Book of the Law of God. The Israelites kept the feast for seven days, and on the eighth day they held an assembly, according to the ordinance.