Fallen, fallen is Babylon the great (epesen, epesen Babulwn h megalh). The very words of Revelation 14:8 : "Did fall, did fall Babylon the great." Prophetic aorists of piptw repeated like a solemn dirge of the damned. Is become (egeneto). Prophetic aorist middle. A habitation of devils (katoikhthrion). Late word (from katoikew, to dwell), in N.T. only here and Ephesians 2:22 . Devils should be demons, of course. So Isaiah prophesied of Babylon (Isa 12:21) and also Jeremiah ( Jeremiah 50:39 ) and Zephaniah of Nineveh ( Zephaniah 2:14 ). Both Babylon and Nineveh are ruins. A hold of every unclean spirit (pulakh panto pneumato akaqartou). Pulakh is garrison or watch-tower as in Habakkuk 2:1 , rather than a prison ( Revelation 20:7 ). A hold of every unclean and hateful bird (pulakh panto orneou akaqartou kai memishmenou). Orneou is old word for bird, in N.T. only Revelation 18:2 ; Revelation 19:17Revelation 19:21 . "The evil spirits, watching over fallen Rome like night-birds or harpies that wait for their prey, build their eyries in the broken towers which rise from the ashes of the city" (Swete). Long ago true of Babylon and Nineveh, some day to be true of Rome.