Deuteronomy 31:7-11

Then Moses called to Joshua and said to him in the sight of all Israel, “Be strong and courageous, for you will go with this people into the land which the Lord has sworn to their fathers to give them, and you will give it to them as an inheritance.

And the Lord is the One who is going ahead of you; He will be with you. He will not desert you or abandon you. Do not fear and do not be dismayed.”

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 the release 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 before all Israel so that they hear it.