Deu 17:14-20 “When you come to the land that the LORD your God is giving you, and you possess it and dwell in it and then say, ‘I will set a king over me, like all the nations that are around me,’ you may indeed set a king over you whom the LORD your God will choose. One from among your brothers you shall set as king over you. You may not put a foreigner over you, who is not your brother. Only he must not acquire many horses for himself or cause the people to return to Egypt in order to acquire many horses, since the LORD has said to you, ‘You shall never return that way again.’ And he shall not acquire many wives for himself, lest his heart turn away, nor shall he acquire for himself excessive silver and gold. “And when he sits on the throne of his kingdom, he shall write for himself in a book a copy of this law, approved by the Levitical priests. 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, that his heart may not be lifted up above his brothers, and that he may not turn aside from the commandment, either to the right hand or to the left, so that he may continue long in his kingdom, he and his children, in Israel.
God looked forward – some 400 years forward – into Israel’s future, to the time when they would demand a king. God warned them to set a king over you whom the LORD your God chooses, and that person had to be an Israelite and not a foreigner. It is interesting to consider whether or not God wanted an earthly king over Israel. 1 Samuel 8:6-9, the record of Israel’s demand for king, puts the request for a king in a negative light. One might ask if God really did want Israel to never have an earthly king, and if He wanted them to recognize Him alone as king. It is a debatable issue; but consider that Israel’s history without a king (the time of the book of Judges) was not a period of national glory. Perhaps we can say that God wanted Israel to have a king, but of His choosing, and at His timing. Saul is a perfect example of a king out of God’s will, chosen by the nation and at their timing; David is a perfect example of a king chosen by God and in His timing.
The future king of Israel must not put undue trust in military might.
The future king of Israel must not put undue emphasis on physical indulgence and personal status.
The future king of Israel must not put undue emphasis on personal wealth.
Each of these issues is a matter of balance. The king had to have some military power, but not too much; one wife and certain comforts, but not too much; some personal wealth, but not too much. Such balances are often the hardest to keep. Solomon was a notorious breaker of these commands. He had forty thousand stalls of horses for his chariots (1 Kings 4:26), and Solomon had horses imported from Egypt (1 Kings 10:28). He had seven hundred wives, princesses, and three hundred concubines; and his wives turned away his heart (1 Kings 11:3). He surpassed all the kings of the earth in riches (1 Kings 10:23). et, all along, we might see Solomon knowing the commands of Deuteronomy 17, yet deceiving himself by asking the self-justifying questions, “How much is ‘multiply’? I can handle this. I haven’t gone too far.” It might seem self-evident that 700 wives and 300 concubines is multiplying wives to yourself, but one should never underestimate the ability of the human heart to deceive itself in such situations.
Each of these three areas reflects the places where many modern Christian leaders fall: In regard to power, pleasure, or money. God’s commands for leaders have not changed; and neither has the need to be on guard against the self-deception in these things which felled Solomon.
It is striking to think of the king of Israel, laboring over parchment with a pen, making a personal copy of the law of Israel. This shows how greatly God wanted the word of God to be on the hearts of His rulers; God wanted every king to also be a scribe. The word of God was to be constant companion of the king of Israel, and something he read every day. All need the word of God; but the greater our responsibilities, the greater our need to depend on the truth of God’s word. Staying in the word of God was intended to build a reverence for God and a holy life in the king.
It is striking to consider that reading a book – the Great Book, the Bible – can keep a person from sin. We may not understand all the spiritual work behind the word of God, but staying in the word will keep one from sin. It has been well written in many Bibles: “This book will keep you from sin. Sin will keep you from this book.”
Staying in the word of God would keep the king properly humble and help him to not think of himself as above those he ruled over. (Guzik)
“The Scriptures, diligently read and studied, are a powerful and probable means to keep him humble, because they show him that, though a king, he is subject to a higher Monarch, to whom he must give an account… sufficient to abate the pride of the haughtiest person in the world, if he duly consider it.” (Poole)
In all cases, God’s choice, if we can but know it, should direct, determine, and overrule ours. Laws are given for the prince that should be elected. He must carefully avoid every thing that would turn him from God and religion. Riches, honours, and pleasures, are three great hinderances of godliness, (the lusts of the flesh, the lusts of the eye, and the pride of life,) especially to those in high stations; against these the king is here warned. The king must carefully study the law of God, and make that his rule; and having a copy of the Scriptures of his own writing, must read therein all the days of his life. It is not enough to have Bibles, but we must use them, use them daily, as long as we live. Christ’s scholars never learn above their Bibles, but will have constant occasion for them, till they come to that world where knowledge and love will be made perfect. The king’s writing and reading were as nothing, if he did not practise what he wrote and read. And those who fear God and keep his commandments, will fare the better for it even in this world.(Henry)