And a mighty angel took up a stone like a great millstone, and cast it into the sea; for a sign or symbol of the irreparable ruin of Rome, signified by that great millstone which had ground to powder so many of God's holy ones. By this sign God shows his prophet:
1. That Rome shall be ruined.
2. That it shall be done with violence.
3. That it shall be a total, utter ruin, from whence it shall never recover.