Deuteronomy 17:19-20
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19And it shall be with him, and he shall read it all the days of his life, so that he will learn to fear the Lord his God, by carefully following all the words of this Law and these statutes, 20so that his heart will not be haughty toward his countrymen, and that he will not turn away from the commandment to the right or the left, so that he and his sons may live long in his kingdom in the midst of Israel.