Revelation 18:21

Overview - Revelation 18
Babylon is fallen.
People commanded to depart out of her.
The kings of the earth, with the merchants and mariners, lament over her.
20 The saints rejoice for the judgments of God upon her.
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Revelation 18:21  (King James Version)
And a mighty angel took up a stone like a great millstone, and cast it into the sea, saying, Thus with violence shall that great city Babylon be thrown down, and shall be found no more at all.

a mighty
This was to represent the violence of her fall, and that she should never rise again; which is further illustrated by varied emphatic expressions taken from the ancient prophets. But Rome is still standing and flourishing, and honoured by many nations as the metropolis of the Christian world; she still resounds with singers and musicians; she still excels in arts, which serve for pomp and luxury; she still abounds with candles, and lamps, and torches, burning even by day, as well as by night; and consequently this prophecy has not been, but remains to fulfilled.

Exodus 15:5 ; Nehemiah 9:11 ; Jeremiah 51:63 Jeremiah 51:64

and shall
22 ; 12:8 16:20 20:11 Job 20:8 ; Psalms 37:36 ; Ezekiel 26:21 ; Daniel 11:19