Deuteronomy 29:25

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;

Deuteronomy 29:25 Meaning and Commentary

Deuteronomy 29:25

Then men shall say
The answer that will be returned to the above questions will be this

because they have forsaken the covenant of the Lord God of their
fathers:
breakers of covenants with men are always reckoned among the worst of men, see ( Romans 1:31 ) ; and especially breakers of covenant with God, and with such a God as the God of Israel was, so good, so kind, and gracious; and of such a covenant he made with them, in which so many good things were promised unto them, on condition of their obedience; as the continuance in, such a land they dwelt in, with an abundance of privileges, civil and religious: and this covenant God of theirs was the God of their fathers also; and it was always reckoned an heinous sin among the Heathens to forsake the gods of their ancestors; see ( Jeremiah 2:11 ) ;

which he made with them when he brought them out of the land of Egypt;
which is another aggravation of their breach of the covenant the Lord made with them; it being made with them by that God, and at that time, when he in so wonderful a manner, with such mighty power, and a outstretched arm, and in great kindness and tenderness to them, brought then, out of hard bondage and most wretched slavery in Egypt.

Deuteronomy 29:25 In-Context

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.