Deuteronomy 17:18

And it shall be, when he sitteth upon the throne of his kingdom, that he shall write him a copy of this law in a book out of that which is before the priests the Levites:

He shall write him a copy. The original scroll of the ancient Scriptures was deposited in the sanctuary under the strict custody of the priests (see the notes at Deuteronomy 31:26; 2 Kings 22:8). Each monarch, on his accession, was to be furnished with a true and faithful copy, which he was to keep constantly beside him, and daily peruse it, that his character and sentiments being cast into its sanctifying mould, he might discharge his royal functions in the spirit of faith and piety, of humility and a love of righteousness.