Deuteronomy 31:25

So Moses wrote this song the same day, and taught it to the children of Israel.

He commissioned Joshua the son of Nun, and said, “Be strong and courageous; for you shall bring the children of Israel into the land which I swore to them. I will be with you.”

When Moses had finished writing the words of this law in a book, until they were finished,

“Take this book of the law, and put it by the side of the ark of the LORD your God’s covenant, that it may be there for a witness against you.

For I know your rebellion and your stiff neck. Behold, while I am yet alive with you today, you have been rebellious against the LORD. How much more after my death?

Assemble to me all the elders of your tribes and your officers, that I may speak these words in their ears, and call heaven and earth to witness against them.