“As a work of prophecy, of course, Revelation is wholly and self-evidently wrong. ‘How long, O Lord, holy and true, until you judge and avenge our blood on those who dwell on the earth?’ demands the biblical author, quoting the souls of the dead martyrs, and he answers his own question by attributing an unambiguous promise to Jesus Christ: ‘Behold, I am coming soon.’ (Rev. 6:10-11, 3:11, RSV) Those words were first reduced to writing nearly two thousand years ago, but the readers of Revelation are still waiting for the day of revenge that is predicted with such clarity and confidence in the ancient text.
“The author of Revelation is not the only figure in Christian scriptures whose prediction of the end-times was mistaken. Jesus, according to some awkward sayings attributed to him in the Gospels, assures his followers that at least some of them will see the end of the world with their own eyes. The apostle Paul, in turn, offered the same assurance to his generation of Christians. Both Jesus and Paul were gone by the time the author of Revelation set down his vision of ‘things which must shortly come to pass.’ (Rev. 1:1, KJV) All of them turned out to be dead wrong, and the world is still here. …
“More than a few readers of Revelation in every age, including our own, have thrilled at the idea that the end is near. Indeed, they are perfectly willing to overlook the plain fact that the world has not ended as predicted, and they persist in poring over the text of Revelation in a fresh attempt to figure out the precise date when it will. They have always been wrong, too, of course, but nothing has discouraged the so-called date setters who study the text, crunch the numbers, and come up with dates when the world must end. Not a single century has passed since the ink dried on the first copy of Revelation without some new prediction of the precise date when its prophecies will finally come to pass.” (“A History of the End of the World”, pages 13-14, Jonathan Kirsch)