Dan 7:7

“"And behold a fourth beast." Now, that there has arisen no other kingdom after that of the Greeks except that which stands sovereign at present, is manifest to all. This one has iron teeth, because it subdues and reduces all by its strength, just as iron does. And the rest it did tread with its feet, for there is no other kingdom remaining after this one, but from it will spring ten horns. "And it had ten horns." For as the prophet said already of the leopard, that the beast had four heads, and that was fulfilled, and Alexander's kingdom was divided into four principalities, so also now we ought to look for the ten horns which are to spring from it, when the time of the beast shall be fulfilled, and the little horn, which is Antichrist, shall appear suddenly in their midst, and righteousness shall be banished from the earth, and the whole world shall reach its consummation. So that we ought not to anticipate the counsel of God, but exercise patience and prayer, that we fall not on such times. We should not, however, refuse to believe that these things will come to pass. For if the things which the prophets predicted in former times have not been realized, then we need not look for these things. But if those former things did happen in their proper seasons, as was foretold, these things also shall certainly be fulfilled.”

“Now the fourth beast has swallowed up the third. And this third consists of the children of Japhet, and the fourth consists of the children of Shem, for they are the children of Esau. When Daniel saw the vision of the four beasts, he saw first the children of Ham, the seed of Nimrod, which the Babylonians are; and second, the Persians and Medes, who are the children of Japhet; and third, the Greeks, the brothers of the Medes; and fourth, the children of Shem, which the children of Esau are. For a confederacy was formed between the children of Japhet and the children of Shem. Then the government was taken away from the children of Japhet, the younger, and was given to Shem, the elder; and to this day it continues and will continue for ever. But when the time of the consummation of the dominion of the children of Shem shall have come, the ruler, who came forth from the children of Judah, shall receive the kingdom, when he shall come in his second advent.”

“This is Alexander, king of the Greeks, and the prophet says that he is similar to iron, which is the hardest among metals. He adds that the beast is armed with iron teeth, and with this symbol he indicates Alexander's powerful armies, which nearly subdued all kings. Then he adds that it was seen while devouring or trampling all that came its way, while destroying everything. With these words he predicted that Alexander would have attacked the vastness of almost all provinces, would have robbed their inhabitants and would have abandoned their fields and estates to his soldiers for pillage and destruction, so that it seemed that he had squeezed the entire world and all its precious things under a press and had offered all this to his soldiers in order that they might trample it.”

“Then he tells that the fourth beast would arrive in all sorts of different ways and nothing could be compared with it, it was so different. But at last it conquered all the other kingdoms. The other empires all got their strength from the speed by which they conquered, but this beast would have its strength in its teeth, made of iron. "And he trampled the rest with his feet." He understands many wars.”

“Verse 7. "After this, I beheld in the night-vision, and behold, there was a fourth beast, terrible and wonderful and exceedingly strong. He had large iron teeth, devouring and crushing, and everything that was left he stamped to pieces under his feet." The fourth empire is the Roman Empire, which now occupies the entire world, and concerning which it was said in connection with the image, "Its lower legs were of iron, and part of its feet were of iron, and part of clay." And yet from the iron portion itself Daniel calls to mind that its teeth were iron, and solemnly avers that they were large in size. I find it strange that although he had set forth a lioness, a bear and a leopard in the case of the three previous kingdoms, he did not compare the Roman realm to any sort of beast. Perhaps it was in order to render the beast fearsome indeed that he gave it no name, intending thereby that we should understand the Romans to partake of all the more ferocious characteristics we might think of in connection with beasts. The Hebrews believe that the beast which is here not named is the one spoken of in the Psalms: "A boar from the forest laid her waste, and a strange wild animal consumed her" (Psalm 80:13). Instead of this the Hebrew reads: "All the beasts of the field have torn her." While they are all included in the one Empire of the Romans, we recognize at the same time those kingdoms which were previously separate. And as for the next statement, "...devouring and crushing, and pounding all the rest to pieces under his feet," this signifies that all nations have either been slain by the Romans or else have been subjected to tribute and servitude. "...But it did not resemble the other beasts which I had previously seen" (Vulgate: "...which I had seen before it"). In the earlier beasts he had seen various symbols of fright-fulness, but they were all concentrated in this one. "...and it had ten horns." Porphyry assigned the last two beasts, that of the Macedonians and that of the Romans, to the one realm of the Macedonians and divided them up as follows. He claimed that the leopard was Alexander himself, and that the beast which was dissimilar to the others represented the four successors of Alexander, and then he enumerates ten kings up to the time of Antiochus, surnamed Epiphanes, and who were very cruel. And he did not assign the kings themselves to separate kingdoms, for example Macedon, Syria, Asia, or Egypt, but rather he made out the various kingdoms a single realm consisting of a series. This he did of course in order that the words which were written: "...a mouth uttering overweening boasts" might be considered as spoken about Antiochus instead of about Antichrist.”

“He calls the Roman Empire "the fourth beast," but he does not give it a name because the Roman state was forged together from very many nations and so acquired mastery over the whole world. First it was governed by kings, then by the people, then by the aristocracy, and at last it returned to the first mode of government, monarchy. He states that this beast is "fearsome and very awe-inspiring," because this was the mightiest kingdom of all the other kingdoms. And in the statue that Nebuchadnezzar saw, he put down the fourth metal as iron. Just as iron crushes and breaks everything, so this empire would crush and break everything.”