Deuteronomy 17:18-19

18 “And when he sits on the throne of his kingdom a he shall write for himself in a book a copy of this law b approved by
Hebrew from before
the Levitical priests.
19 And d it shall be with him, and he shall read in it all the days of his life, e that he may learn to fear the  Lord his God by keeping all the words of this law and these statutes, and doing them,
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