Deuteronomy 29:24 - Ellicott's Commentary On The Whole Bible

All nations shall say, Wherefore...? — The people of Israel are represented as asking a similar question in Jeremiah 5:19, “And it shall come to pass, when ye shall say, Wherefore doeth the Lord our God all these things unto us? Then shalt thou answer them, Like as ye have forsaken me, and served strange gods in your land; so shall ye serve strangers in a land that is not yours.” Compare also the warning given to Solomon after the completion of the Temple (marginal reference).