Deuteronomy 17:17-19

Revised Standard Version

¹⁷ And he shall not multiply wives for himself, lest his heart turn away; nor shall he greatly multiply for himself silver and gold.

¹⁸ “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; ¹⁹ 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 Lord his God, by keeping all the words of this law and these statutes, and doing them;