Deuteronomy 17:18-19

BBE(i) 18 And when he has taken his place on the seat of his kingdom, he is to make in a book a copy of this law, from that which the priests, the Levites, have in their care: 19 And it is to be with him for his reading all the days of his life, so that he may be trained in the fear of the Lord his God to keep and do all the words of this teaching and these laws: