Our immediate reaction is to be utterly confused. How can the beast be all those things? How can it have been in the past, not be in the present, and be again in the future? But yes, it can be.
What does the angel mean by saying that the beast ‘is not’? Why does he say this when two verses later, he interprets the seven heads to be seven kings and explains that one of them now is? There is considerable similarity between this passage and chapter 13. The same beast has the same seven heads and ten horns (13:1; 17:7). Revelation 13:3 describes the wounding of one of the heads of the beast. It is this which accounts for the angel’s statement that the beast ‘is not’. It is because its career has been set back in some remarkable way. In the notes on chapter 13, it was suggested that this was because the kingdom of heaven had been established on earth during the course of one of these world empires. This dealt the beast a fatal blow which all the world could see. Christ had established his kingdom on earth, and in the language of Daniel, ‘In the days of these kings [Rome] shall the God of heaven set up a kingdom, which shall never be destroyed: and the kingdom shall not be left to other people, but it shall break in pieces and consume all these kingdoms, and it shall stand for ever’ (Daniel 2:44). Although that empire was about to strike the church with severe persecutions, it could not stop the advance of the kingdom of heaven throughout the world. But just as the wounding of the head in Revelation corresponds to the statement that the beast ‘is not’, so the recovery of the wound in chapter 13 equates to the beast ascending out of the bottomless pit. Its wound results in its being banished for a time to that place from which it originated. The coming of the kingdom of God was marked with the binding of the strong man and the casting out of demons and the end of the devil’s outright authority to prevent the Gentiles from believing the gospel. But ‘when the thousand years are expired, Satan shall be loosed out of his prison’ (Revelation 20:7) and will go forth to organise the final kingdom of the beast.