Deu 7:6-10 “For you are a people holy to the LORD your God. The LORD your God has chosen you to be a people for his treasured possession, out of all the peoples who are on the face of the earth. It was not because you were more in number than any other people that the LORD set his love on you and chose you, for you were the fewest of all peoples, but it is because the LORD loves you and is keeping the oath that he swore to your fathers, that the LORD has brought you out with a mighty hand and redeemed you from the house of slavery, from the hand of Pharaoh king of Egypt. Know therefore that the LORD your God is God, the faithful God who keeps covenant and steadfast love with those who love him and keep his commandments, to a thousand generations, and repays to their face those who hate him, by destroying them. He will not be slack with one who hates him. He will repay him to his face.
Titus 2:14 who gave himself for us to redeem us from all lawlessness and to purify for himself a people for his own possession who are zealous for good works.
1 Peter 2:9 But you are a chosen race, a royal priesthood, a holy nation, a people for his own possession, that you may proclaim the excellencies of him who called you out of darkness into his marvelous light.
Malachi 3:17 “They shall be mine, says the LORD of hosts, in the day when I make up my treasured possession, and I will spare them as a man spares his son who serves him.
Israel was holy in their standing before God before they were holy in their conduct. They were set apart unto God by His choosing (God has chosen you to be a people for Himself) and were then called to live as chosen people. As much as anything, their election meant the LORD set His love on them. Their motivation for such a total obedience was to be that they knew God loved them. (Guzik)
A proper understanding of the evil of sin, and of the mystery of a crucified Saviour, will enable us to perceive the justice of God in all his punishments, temporal and eternal. We must deal decidedly with our lusts that war against our souls; let us not show them any mercy, but mortify, and crucify, and utterly destroy them. Thousands in the world that now is, have been undone by ungodly marriages; for there is more likelihood that the good will be perverted, than that the bad will be converted. Those who, in choosing yoke-fellows, keep not within the bounds of a profession of religion, cannot promise themselves helps meet for them. (Henry)
For thou art an holy people unto the Lord thy God—that is, set apart to the service of God, or chosen to execute the important purposes of His providence. Their selection to this high destiny was neither on account of their numerical amount (for, till after the death of Joseph, they were but a handful of people); nor because of their extraordinary merits (for they had often pursued a most perverse and unworthy conduct); but it was in consequence of the covenant or promise made with their pious forefathers; and the motives that led to that special act were such as tended not only to vindicate God’s wisdom, but to illustrate His glory in diffusing the best and most precious blessings to all mankind. (Brown)
For thou art an holy people unto the Lord thy God,…. Not sanctified in a spiritual sense, or having principles of grace and holiness in them, from whence holy actions sprang, at least not all of them; but they were separated from all other people in the world to the pure worship and service of God in an external manner, and therefore were to avoid all idolatry, and every appearance of it: the Lord thy God hath chosen thee to be a special people unto himself above all people that are upon the face of the earth; for special service and worship, and to enjoy special privileges and benefits, civil and religious; though they were not chosen to special grace here, and eternal glory hereafter; at least not all of them, only a remnant, according to the election of grace; yet they were typical of the chosen people of God in a special sense; who are chosen out of the world to be a peculiar people, to be holy here and happy hereafter; to enjoy communion with God in this life and that to come, as well as to serve and glorify him now and for evermore. (Gill)