Deuteronomy 29:25

25 And shall say, Because they forsook the covenant of the Lord God of their fathers, the things which he appointed to their fathers, when he brought them out of the land 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 brimstone and burning salt, (the whole land shall not be sown, neither shall any green thing spring, nor rise upon it, as Sodom and Gomorrha were overthrown, Adama and Seboim, which the Lord overthrew in his wrath and anger:)—
24 and all the nations shall say, Why has the Lord done thus to this land? what this great fierceness of anger?
25 And shall say, Because they forsook the covenant of the Lord God of their fathers, the things which he appointed to their fathers, when he brought them out of the land of Egypt:
26 and they went and served other gods, which they knew not, neither did he assign to them.
27 And the Lord was exceedingly angry with that land to bring upon it according to all the curses which are written in the book of this law.

The Brenton translation of the Septuagint is in the public domain.