10 Then you shall do according to what they declare to you from that place that the Lord will choose. And you shall be careful to do according to all that they direct you. 11 According to the instructions that they give you, and according to the decision which they pronounce to you, you shall do. You shall not turn aside from the verdict that they declare to you, either to the right hand or to the left. 12 The man who acts presumptuously by not obeying the priest who stands to minister there before the Lord your God, or the judge, that man shall die. So you shall purge the evil from Israel. 13 And all the people shall hear and fear and not act presumptuously again.
14 "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,' 15 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. 16 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.' 17 And he shall not acquire many wives for himself, lest his heart turn away, nor shall he acquire for himself excessive 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, approved by[1] 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, 20 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.
Matthew Henry's Commentary on Deuteronomy 17:10-20
Commentary on Deuteronomy 17:8-13
(Read Deuteronomy 17:8-13)
Courts of judgment were to be set up in every city. Though their judgment had not the Divine authority of an oracle, it was the judgment of wise, prudent, experienced men, and had the advantage of a Divine promise.
Commentary on Deuteronomy 17:14-20
(Read Deuteronomy 17:14-20)
God himself was in a particular manner Israel's King; and if they set another over them, it was necessary that he should choose the person. Accordingly, when the people desired a king, they applied to Samuel, a prophet of the Lord. 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.