21 They have provoked Me to jealousy by what is not God; They have moved Me to anger by their foolish idols. But I will provoke them to jealousy by those who are not a nation; I will move them to anger by a foolish nation.

Matthew Henry's Commentary on Deuteronomy 32:21

Commentary on Deuteronomy 32:19-25

(Read Deuteronomy 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.