Daniel 2:40
And the fourth kingdom shall be strong as iron: forasmuch as iron breaketh in pieces and subdueth all things: and as iron that breaketh all these, shall it break in pieces and bruise.
And the fourth kingdom shall be strong as iron,.... This is not the kingdom of the Lagidae and Seleucidae, the successors of Alexander, as some have thought; for these are designed by the thighs in the third kingdom; and, besides, the kingdom of Christ was to arise in the time of this fourth kingdom, which it did not in that; nor the kingdom of Gog, or the empire of the Turks, as Saadiah, Aben Ezra, and Jarchi; but the Roman empire, which is compared to iron for its strength, firmness, and duration in itself; and for its power over other nations; and also for its cruelty to the Jews above all others, in utterly destroying their city, temple, and nation:
forasmuch as iron breaketh in pieces and subdueth all things; so this kingdom has subdued and conquered all others; not the Jews only, but the Persians, Egyptians, Syrians, Africans, French, Germans, yea, all the world:
and as iron that breaketh, or "even as iron breaketh all these",
shall it break in pieces, and bruise; all nations and kingdoms; hence Rome has been called the mistress of the world, and its empire in Scripture is called the whole world, Luke 2:1.