These were demonic spirits who performed signs. They went out to the kings of the whole world to assemble them for the battle on the great day of God the almighty.
He cried out in a mighty voice: “Fallen, fallen is Babylon the great. She has become a haunt for demons. She is a cage for every unclean spirit, a cage for every unclean bird, [a cage for every unclean] and disgusting [beast].
The beast was caught and with it the false prophet who had performed in its sight the signs by which he led astray those who had accepted the mark of the beast and those who had worshiped its image. The two were thrown alive into the fiery pool burning with sulfur.
The Devil who had led them astray was thrown into the pool of fire and sulfur, where the beast and the false prophet were. There they will be tormented day and night forever and ever. The Large White Throne.