6 Do this because you are a people set apart as holy to God, your God. God, your God, chose you out of all the people on Earth for himself as a cherished, personal treasure. 7 God wasn't attracted to you and didn't choose you because you were big and important - the fact is, there was almost nothing to you. 8 He did it out of sheer love, keeping the promise he made to your ancestors. God stepped in and mightily bought you back out of that world of slavery, freed you from the iron grip of Pharaoh king of Egypt.
Matthew Henry's Commentary on Deuteronomy 7:6-8
Commentary on Deuteronomy 7:1-11
(Read Deuteronomy 7:1-11)
Here is a strict caution against all friendship and fellowship with idols and idolaters. Those who are in communion with God, must have no communication with the unfruitful works of darkness. Limiting the orders to destroy, to the nations here mentioned, plainly shows that after ages were not to draw this into a precedent. 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.