Commentaries
32:19-25 The revolt of Israel was described in the foregoing verses, and here follow the resolves of Divine justice as to them. We deceive ourselves, if we think that God will be mocked by a faithless people. Sin makes us hateful in the sight of the holy God. See what mischief sin does, and reckon those to be fools that mock at it.
21. those which are not a people—that is, not favored with such great and peculiar privileges as the Israelites (or, rather poor, despised heathens). The language points to the future calling of the Gentiles.