18 It shall be, when he sits on the throne of his kingdom, that he shall write himself a copy of this law in a book, out of that which is before the Levitical priests. 19 It shall be with him, and he shall read from it all the days of his life, that he may learn to fear the LORD his God, to keep all the words of this law and these statutes, to do them; 20 that his heart not be lifted up above his brothers, and that he not turn away from the commandment to the right hand, or to the left, to the end that he may prolong his days in his kingdom, he and his children, in the middle of Israel.