29:22-28 Idolatry would be the ruin of their nation. It is no new thing for God to bring desolating judgments on a people near to him in profession. He never does this without good reason. It concerns us to seek for the reason, that we may give glory to God, and take warning to ourselves. Thus the law of Moses leaves sinners under the curse, and rooted out of the Lord's land; but the grace of Christ toward penitent, believing sinners, plants them again in their land; and they shall no more be pulled up, being kept by the power of God.

10-29. Ye stand this day all of you before the Lord your God—The whole congregation of Israel, of all ages and conditions, all—young as well as old; menials as well as masters; native Israelites as well as naturalized strangers—all were assembled before the tabernacle to renew the Sinaitic covenant. None of them were allowed to consider themselves as exempt from the terms of that national compact, lest any lapsing into idolatry might prove a root of bitterness, spreading its noxious seed and corrupt influence all around (compare Heb 12:15). It was of the greatest consequence thus to reach the heart and conscience of everyone, for some might delude themselves with the vain idea that by taking the oath (De 29:12) by which they engaged themselves in covenant with God, they would surely secure its blessings. Then, even though they would not rigidly adhere to His worship and commands, but would follow the devices and inclinations of their own hearts, yet they would think that He would wink at such liberties and not punish them. It was of the greatest consequence to impress all with the strong and abiding conviction, that while the covenant of grace had special blessings belonging to it, it at the same time had curses in reserve for transgressors, the infliction of which would be as certain, as lasting and severe. This was the advantage contemplated in the law being rehearsed a second time. The picture of a once rich and flourishing region, blasted and doomed in consequence of the sins of its inhabitants, is very striking, and calculated to awaken awe in every reflecting mind. Such is, and long has been, the desolate state of Palestine; and, in looking at its ruined cities, its blasted coast, its naked mountains, its sterile and parched soil—all the sad and unmistakable evidences of a land lying under a curse—numbers of travellers from Europe, America, and the Indies ("strangers from a far country," De 29:22) in the present day see that the Lord has executed His threatening. Who can resist the conclusion that it has been inflicted "because the inhabitants had forsaken the covenant of the Lord God of their fathers. … and the anger of the Lord was kindled against this land, to bring upon it all the curses that are written in this book"?