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, Jeremiah 51:63-64.
Related Commentaries of Revelation 18:21
Revelation 18:21
21 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.