Exodus 18:11

Now I know that the LORD is greater than all gods: for in the thing wherein they dealt proudly he was above them.

Now I know that the Lord is greater than all gods. The reference is to the momentous events which had reduced the country and kingdom of Egypt to the verge of destruction. In those transactions Jethro, as a calm, intelligent, reflecting observer at a distance, had seen a controversy carried on by Yahweh less with the sovereign than the idols of Egypt, and that the extraordinary series of miracles had produced the effect of exposing the insignificance or nothingness of all her gods.