Charles Spurgeon Commentary Deuteronomy 32:21

"They have moved me to jealousy with that which is not God; They have provoked me to anger with their vanities: And I will move them to jealousy with those that are not a people; I will provoke them to anger with a foolish nation." — Deuteronomy 32:21 (ASV)

They have moved me to jealousy with that which is not God; they have provoked me to anger with their vanities: and I will move them to jealousy with those which are not a people; I will provoke them to anger with a foolish nation.

And so the idolatrous nations came and conquered Judea. One after another, they trampled down the holy city, and let them see that God could use the nations that they despised to be a scourge upon them.