7 After this I saw in the night visions, and behold, a fourth beast, dreadful and terrible, exceedingly strong. It had huge iron teeth; it was devouring, breaking in pieces, and trampling the residue with its feet. It was different from all the beasts that were before it, and it had ten horns.
Matthew Henry's Commentary on Daniel 7:7
Commentary on Daniel 7:1-8
(Read Daniel 7:1-8)
This vision contains the same prophetic representations with Nebuchadnezzar's dream. The great sea agitated by the winds, represented the earth and the dwellers on it troubled by ambitious princes and conquerors. The four beasts signified the same four empires, as the four parts of Nebuchadnezzar's image. Mighty conquerors are but instruments of God's vengeance on a guilty world. The savage beast represents the hateful features of their characters. But the dominion given to each has a limit; their wrath shall be made to praise the Lord, and the remainder of it he will restrain.