Finally a fourth kingdom, strong and destructive as iron. But in this fourth kingdom was an element of weakness, symbolised by the fact that the feet are partly of iron and partly of weak clay. An attempt should be made, by intermarriages, to give greater coherency to these elements; but it should fail, because they could not intermix. In the days of these kings, indicated by the ten toes of the image, swift destruction should come upon the kingdoms from on high; for the King of heaven should set up a kingdom indestructible and eternal, which should utterly supersede all former kingdoms. "The intense nothingness and transitoriness of man's might in its highest estate, and the might of God's kingdom, are the chief subjects of this vision."[309] Volumes have been written about the four empires indicated by the constituents of the colossus in this dream; but it is entirely needless to enter into them at length. The vast majority of the interpretations have been simply due to _a-priori_ prepossessions, which are arbitrary and baseless. The object has been to make the interpretations fit in with preconceived theories of prophecy, and with the traditional errors about the date and object of the Book of Daniel. If we first see the irresistible evidence that the Book appeared in the days of Antiochus Epiphanes, and then observe that all its earthly "predictions" culminate in a minute description of his epoch, the general explanation of the four empires, apart from an occasional and a subordinate detail, becomes perfectly clear. In the same way the progress of criticism has elucidated in its general outlines the interpretation of the Book which has been so largely influenced by the Book of Daniel--the Revelation of St. John. The all-but-unanimous consensus of the vast majority of the sanest and most competent exegetes now agrees in the view that the Apocalypse was written in the age of Nero, and that its tone and visions were predominantly influenced by his persecution of the early Christians, as the Book of Daniel was by the ferocities of Antiochus against the faithful Jews. Ages of persecution, in which plain-speaking was impossible to the oppressed, were naturally prolific of apocalyptic cryptographs. What has been called the "futurist" interpretation of these books--which, for instance, regards the fourth empire of Daniel as some kingdom of Antichrist as yet unmanifested--is now universally abandoned. It belongs to impossible forms of exegesis, which have long been discredited by the boundless variations of absurd conjectures, and by the repeated refutation of the predictions which many have ventured to base upon these erroneous methods. Even so elaborate a work as Elliott's _Horæ Apocalypticæ_ would now be regarded as a curious anachronism. That the first empire, represented by the head of gold, is the Babylonian, concentrated in Nebuchadrezzar himself, is undisputed, because it is expressly stated by the writer (ii. 37, 38).