Deuteronomy 17:16-18

New Catholic Bible

¹⁶ He must not build up a large stable for himself, and he must not send people back to Egypt to procure a large stable, for the Lord has said that you are not to return that way again. ¹⁷ He should also not have many wives, lest his heart be turned astray. He must not accumulate large sums of silver or gold. ¹⁸ When he takes the throne of his kingdom, he is to write a copy of the law that is entrusted to the priests, the Levites for himself on a scroll.