The challenge of Psalm 93 is that two things are set side by side. The throne and the sea — the throne representing God’s sovereignty, the sea representing evil powers too strong for us to control. Both the throne and the sea appear again, together, in Revelation 4:5-6, but the sea doesn’t sound like Psalm 93 anymore: “Flashes of lightning and rumblings and peals of thunder came from the throne. Seven fiery torches were burning before the throne, which are the seven spirits of God. Something like a sea of glass, similar to crystal, was also before the throne.”
David Platt, Jim Shaddix, and Matt Mason, Christ-Centered Exposition Commentary: Exalting Jesus in Psalms 51-100, 387.