7:7 The fewest - To wit, at that time when God first declared his choice of you for his peculiar people, which was done to Abraham. For Abraham had but one son concerned in this choice and covenant, namely, Isaac, and that was in his hundredth year; and Isaac was sixty years old ere he had a child, and then had only two children; and though Jacob had twelve sons, it was a long time before they made any considerable increase. Nor do we read of any great multiplication of them 'till after Joseph's death.
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.