He shall write — With his own hand, as the Jews say. Out of that — Out of the original, which was carefully kept by the priests in the sanctuary, that it might be a perfect copy, and that it might have the greater influence upon him, coming to him as from the hand and presence of God.
Related Commentaries of Deuteronomy 17:18
Deuteronomy 17:18
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: