Второзаконие 17:20

that he may prolong his days in his kingdom, he and his children--From this it appears that the crown in Israel was to be hereditary, unless forfeited by personal crime. Next: Deuteronomy Chapter 18

That his heart be not lifted up above his brethren,.... On account of his office, the dignity of it, considering that he was subject to the law of God, and accountable to the Lord for all his actions: and that he turn not aside from the commandment, to the right hand or to the left; not in the least deviate from the law of God in the whole of his conduct, and particularly in the exercise of his kingly office: to the end that he may prolong his days in his kingdom; ruling well according to the laws of God being the way to rule long: he and his children in the midst of Israel; this shows, as Jarchi observes, that if his son was fit for the kingdom, he was to be preferred to any other man; for though it was elective, yet to be continued in the same family, provided they walked in the ways of the Lord, and observed his laws. Next: Deuteronomy Chapter 18

Not only did the inclination to nature-worship, such as the setting up of the idols of Ashera and Baal, belong to the crimes which merited punishment, but also a manifest transgression of the laws concerning the worship of Jehovah, such as the offering of an ox or sheep that had some fault, which was an abomination in the sight of Jehovah (see at Lev 22:20.). "Any evil thing," i.e., any of the faults enumerated in Lev 22:22-24.

The charge of this chapter is, I. Concerning the purity and perfection of all those animals that were offered in sacrifice (Deu 17:1). II. Concerning the punishment of those that worshipped idols (Deu 17:2-7). III. Concerning appeals from the inferior courts to the great sanhedrim (Deu 17:8-13). IV. Concerning the choice and duty of a king (Deu 17:14, etc.).