John Gill's Exposition of the Whole Bible
Deuteronomy 29:24
Even all nations shall say,.... For the destruction of this land, and the people of it, would be, as it has been, so very great and awful, and so very remarkable and surprising, that the fame of it would be heard among all the nations of the world, as it has been; who, upon hearing the sad report of it, would ask the following questions:
wherefore hath the Lord done thus unto this land? so distinguished from all others for the fruitfulness and pleasantness of it; the people, the inhabitants of which, he chose, above all others, to be a special and peculiar people; and where he had a temple built for him, and where he had his residence, and worship used to be given unto him:
what [meaneth] the heat of this great anger? what is the reason of his stirring up his fierce wrath, and causing it to burn in so furious a manner? surely it must be something very horrible and provoking indeed!