In Psalm 136:15, it is stated that God overthrew Pharaoh and his army in the Red Sea. The Hebrew word translated as overthrew is na'ar, also appearing in Exodus 14:27. This term does not imply drowning or tumbling in water, but simply means shook off, as noted in various biblical margins and the Brown, Driver & Briggs Hebrew Lexicon. Nehemiah 5:13 provides an example of how na'ar should be understood, illustrating a shaking out action. Thus, these verses indicate that God shook off the Egyptians, including Pharaoh, from their pursuit of the Israelites.