פירוש על עבודה זרה 109:1

The midrash here reads the verse in almost the opposite way as the simple reading. According to the “peshat” God is promising to destroy the world due to its sins. But according to the midrash, the sentence is rhetorical—God clearly is not going to destroy the world. The world is full of idolaters who worship nature and yet nature continues, as do the idolaters. So according to the midrash, God is saying that the world should not be destroyed just because of the fools (idolaters).