Exodus 18:11

Now I know that the Lord, Jehovah, the God whom Moses and the children of Israel worshiped, is greater than all gods, having manifested Himself as being exalted above all so-called gods, the idols of the heathen; for in the thing wherein they dealt proudly He was above them. The Egyptians, foolishly trusting in their idols, had acted wickedly in all their dealings with the Israelites, but the Lord had shown His superiority in the plagues which He had sent, down to the final annihilation of Pharaoh's host in the Red Sea.