Rev Revelation, chapter Revelation of Jesus Christ, chapter 18
Then a mighty angel picked up a boulder the size of a large stone for grinding grain, and threw it into the ocean. Then he said, “O you people in [APO] the awesome/great cities represented by Babylon, your cities will be destroyed so that they will disappear just like that stone disappeared in the ocean! Your cities will be gone forever [LIT]! Jer 51:63