New Defender's Study Bible Notes
93:1 cannot be moved. This promise is fulfilled literally in the new earth. During the coming tribulation period, “the earth is moved exceedingly” (Isaiah 24:19-20; Haggai 2:6).
93:2 of old. Here is yet another testimony that God is eternal, without beginning and without end (Psalm 90:2; etc.).
93:4 many waters. The greatest display of mighty power in human history was the great Flood of Noah’s day. Yet God sent the flood, controlled the Flood, and terminated the Flood.