23 They'll see a fire-blackened wasteland of brimstone and salt flats, nothing planted, nothing growing, not so much as a blade of grass anywhere - like the overthrow of Sodom and Gomorrah, Admah and Zeboiim, which God overthrew in fiery rage. 24 All the nations will ask, "Why did God do this to this country? What on earth could have made him this angry?" 25 Your children will answer, "Because they abandoned the Covenant of the God of their ancestors that he made with them after he got them out of Egypt; 26 they went off and worshiped other gods, submitted to gods they'd never heard of before, gods they had no business dealing with. 27 So God's anger erupted against that land and all the curses written in this book came down on it. 28 God, furiously angry, pulled them, roots and all, out of their land and dumped them in another country, as you can see." 29 God, our God, will take care of the hidden things but the revealed things are our business. It's up to us and our children to attend to all the terms in this Revelation.

Matthew Henry's Commentary on Deuteronomy 29:23-30

Commentary on Deuteronomy 29:22-28

(Read Deuteronomy 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.

Commentary on Deuteronomy 29:29

(Read Deuteronomy 29:29)

Moses ends his prophecy of the Jews' rejection, just as St. Paul ends his discourse on the same subject, when it began to be fulfilled, Romans 11:33. We are forbidden curiously to inquire into the secret counsels of God, and to determine concerning them. But we are directed and encouraged, diligently to seek into that which God has made known. He has kept back nothing that is profitable for us, but only that of which it is good for us to be ignorant. The end of all Divine revelation is, not to furnish curious subjects of speculation and discourse, but that we may do all the words of this law, and be blessed in our deed. This, the Bible plainly reveals; further than this, man cannot profitably go. By this light he may live and die comfortably, and be happy for ever.