The idea of inferiority seems to pass to the succeeding empires as well. But in what way was Medo-Persia inferior?
Medo-Persia controlled a larger territory than did Babylon, so it was certainly not inferior in political or military might. Even before the fall of Babylon, Cyrus had defeated the wealthy Croesus, king of Lydia in Asia Minor (546 BC). After victories in central Iran and in Phoenicia, he conquered Babylon in 539 BC, and his son Cambyses overthrew Egypt and Libya in 525 BC. At its height the Persian Empire was nearly double the size of Babylon.
It did, however, have a problem with internal unity. Cyrus, a Persian, initiated the growth of the empire by usurping the Median throne with the help of the Median nobility. The empire, from this point on, was dominated by Persians, or as the Bible says, the "bear . . . was raised up on one side" (Daniel 7:5). The two arms of the image symbolize this division.
Also, each time an emperor died, severe struggles erupted over succession to the throne. Fortunately, mostly strong and capable rulers won these struggles, especially during its first century, and kept the empire whole for over two hundred years. Only the superior might of Alexander's Macedonian army spelled its downfall.
Another factor of its inferiority was, oddly, its rulers. Cyrus, regaled in the Bible as God's "shepherd" and "His anointed" (Isaiah 44:28-45:13), was not the same caliber of man as Nebuchadnezzar. Though he was a humane and conciliatory ruler for his time, he neither lived long enough to stamp his character on his realm (d. 529 BC), nor did he acknowledge God's sovereignty as did his predecessor (Daniel 4:28-37).
In relation to this, the word inferior itself ('ara') means "earth, world, ground." Persia was literally more "earthly" or "worldly" than Babylon in God's eyes. The aims and drives of its kings were, as a whole, of a lower nature than Babylon's, though the latter's were certainly misguided as well. However, the trajectory of this factor in all these kingdoms is, according to the prophecy, downward, and it sinks further with each new empire.
On the other hand, it must be injected here that Cyrus was the instrument that God used to reestablish the Temple in Jerusalem (II Chronicles 36:22-23). The Persians had a general policy to honor the gods of all their defeated enemies by repairing or rebuilding temples and giving offerings to them. This was mainly done to appease the gods "just in case" they had been offended by the subjugation of their peoples, as well as to smooth relations between the Persians and their vassals. Scholars are still divided over whether Cyrus actually meant that the God of Israel was indeed the true God and thus his sovereign Lord. Most think he did not because decrees to other nations have been found in which similar language is used.
Unlike the Babylonians, the Persian Empire centered squarely on its military and political bases rather than its religious, cultural, or economic life. Historians consider the Persian imperial political structure and administrative forms to be the finest example of government before the Roman period. In fact, they think that the Romans borrowed Persian ideas in forming their own. This meant that the real basis of power in the empire was the army, even above that of the king, although the king supposedly controlled the army.
The religion of the Persians was Zoroastrianism, a dualistic belief in good and evil and man's struggle between them. Although it was less bloody, warlike, idolatrous, and superstitious than other polytheistic religions of the region, it retained vestiges of ancient beliefs that eventually supplanted it. The cults of Mithra, the sun god, and Anaita, the goddess of fertility—similar to Nimrod/Tammuz and Semiramis, the old Babylonian Mystery Religion—grew in popularity until Zoroastrianism faded into obscurity. But its principle of dualism lived on in Gnosticism and the mystery religions of the Roman Empire. Some of these beliefs and practices (such as Mithra's birthday, December 25; Sunday as a holy day; All Soul's Day; and heaven, hell and purgatory) were later embraced by Catholicism to counter the popularity of these cults.
Richard T. Ritenbaugh
Nebuchadnezzar's Image (Part Two): Chest and Arms of Silver