Deuteronomy 31:26

“You shall put into the ark the testimony which I shall give you.

“Now it will be when he sits on the throne of his kingdom, that he shall write for himself a copy of this law on a scroll in the presence of the Levitical priests.

So Moses wrote this law and gave it to the priests, the sons of Levi who carried the ark of the covenant of Yahweh, and to all the elders of Israel.

Then Samuel spoke with the people about the legal judgments of the kingdom and wrote them in the book and placed it before Yahweh. And Samuel sent all the people away, each one to his house.

“And there I have set a place for the ark, in which is the covenant of Yahweh, which He cut with our fathers when He brought them from the land of Egypt.”

Then Hilkiah the high priest said to Shaphan the scribe, “I have found the book of the law in the house of Yahweh.” And Hilkiah gave the book to Shaphan and he read it.