Deuteronomy 31:9-11

So Moses wrote this law and gave it to the priests, the sons of Levi who carried the ark of the covenant of the LORD, and to all the elders of Israel. Then Moses commanded them, saying, “At the end of every seven years, at the time of the year of remission of debts, at the Feast of Booths, when all Israel comes to appear before the LORD your God at the place which He will choose, you shall read this law in front of all Israel in their hearing.