What does Psalm 93:4 mean?

This continues references to water, noise, and chaos (Psalm 93:3). Scripture uses the sea to represent confusion and commotion (Psalm 65:5–7; Isaiah 5:29–30). This ties closely to the idea of Gentile nations, who lack the light of God's commandments (Luke 2:31–32; Acts 13:47). The Lord is far more powerful than these; all things are under His sovereign power.

One of the most vivid examples of God's power was when He rolled back the water of the Red Sea so His people could cross safely. When the armed Egyptian cavalry tried to pursue the Hebrews, the Lord showed His omnipotent control of the Red Sea by closing the waters and drowning the enemy (Exodus 14). Christ also demonstrated power over raging waves by speaking just a brief command: "Peace be still." At that, crashing waves became calm (Mark 4:38–39).