Deuteronomy 31:9-11

9And Moses wrote this law, and delivered it to the priests, the sons of Levi, who bore the ark of the covenant of Jehovah, and to all the elders of Israel.

10And Moses commanded them, saying, At the end of every seven years, at the set time of the year of release, at the feast of tabernacles,

11when all Israel cometh to appear before Jehovah thy 1God in the place which he will choose, thou shalt read this law before all Israel in their ears.