Deuteronomy 17:14-20

14You are going into the land that the Lord your God is giving to you. You will take it for yourselves to be your home. Then you may say, ‘The other nations around us have kings. We must also have a king to rule us.’

15If that happens, you must only accept a king that the Lord your God chooses. Choose a king from among your own people. Do not choose anyone who is not an Israelite.

16A king must not get a lot of horses for himself. He must not send his people back to Egypt to buy more horses. The Lord has said to you, ‘Never return to Egypt for any reason!’

17A king must not marry many wives. They may turn his thoughts away from the Lord. He must not store a lot of silver and gold for himself.

18When anyone starts to rule as king, he must copy this Law of God on a scroll. The scroll will be a copy of the one that belongs to the Levite priests.

19He must keep this scroll with him all the time. He must continue to read it every day of his life. If he does that, he will learn to respect the Lord his God. He will learn to obey all the rules and commands of this Law.

20If he does that, he will not become proud. He will not think that he is better than other Israelites. He will continue to obey the Lord's commands. Then he and his descendants will rule Israel as kings for many years.