"Deuteronomy is the only book of the Pentateuch that refers to a written Torah as comprising the divine will: ‘And when he sits on the throne of his kingdom, he shall write for himself in a book a copy of this law, from that which is in charge of the Levitical priests; and it shall be with him, and he shall read in it all the days of his life, that he may learn to fear the L ORD his God, by keeping all the words of this law and these statutes, and doing them; that his heart may not be lifted up above his brethren, and that he may not turn aside from the commandment, either to the right hand or to the left; so that he may continue long in his kingdom, he and his children, in Israel.' Deuteronomy 17:18–20."