Why did the nations rage? As it is said in the scripture (Isaiah 57:20), "But the wicked are like the tossing sea, which cannot rest, whose waves cast up mire and mud." Just as the sea brings up all its vessels onto its surface, so too the vessels of the wicked are on their lips. Pharaoh said (Exodus 5:2), "Who is the Lord?" Sisera oppressed the children of Israel mightily (Judges 4:3). What is meant by "mightily"? With sword and spear. As it is written (Malachi 3:13), "Your words have been strong against me." Sennacherib said (2 Kings 19:15), "Who among all the gods of the lands have delivered their countries?" Nebuchadnezzar said (Daniel 3:15), "And who is the god who will deliver you out of my hands?"
Their — Pharaoh in the Days of Moses
Midrash Tehillim 2:1