“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.”
King James Version (KJV)
18:21 And a mighty angel took up a stone, and threw it into the sea - By a like emblem Jeremiah fore - showed the fall of the Chaldean Babylon, #Jer 51:63|,64.
Re 18:21 And a mighty angel took up a stone. See Jer 51:61-64. This symbolical act implies an utter destruction. In Jeremiah the stone is cast into the Euphrates. Now it is cast into the sea, because another Babylon is designed.