Genesis 3:14

Fossils tell us plainly that before this time snakes looked as they do now, so God did not strip the serpent of legs and/or wings at this time, as some suppose in reading this verse literally. [In the same way, God did not suddenly create rainbows in Noah's day, but gave them new significance (Genesis 9:8-17).] God's words fit the facts better when taken figuratively.

His curse on serpents covers what they symbolize to men, which we can see when the verse is correctly translated. "More than" in Genesis 3:14 has the sense of "apart from," meaning that God sets the snake apart from other cattle or beasts to represent the Devil, the ultimate cause and originator of sin.

Thus, that the snake would crawl on its belly and eat dust is not literal but symbolic. Both of these figures, written in parallel clauses, signify humiliation. Snakes symbolize abasement or ignominy because of sin. Why? God wanted the snake to be a constant reminder, not only to humanity but to Satan as well, that the Devil's ultimate fate will be the humiliation of his gargantuan pride. He will cower on his belly before God and eat dust!

Isaiah uses a different figure, but the result is the same: "Yet you shall be brought down to Sheol, to the lowest depths of the Pit" (Isaiah 14:15). Since, as far as we know, Satan cannot be destroyed, he must be humiliated and imprisoned. During the Millennium, God will do this by locking him in the Bottomless Pit (Revelation 20:1-3), and after he is released "for a little while" at its end, God will then cast him into the Lake of Fire (verses 7-10).

Ezekiel also brings out this humiliating end:

Your heart was lifted up because of your beauty; you corrupted your wisdom for the sake of your splendor; I cast you to the ground, I laid you before kings, that they might gaze at you. You defiled your sanctuaries by the multitude of your iniquities, by the iniquity of your trading; therefore I brought fire from your midst; it devoured you, and I turned you to ashes upon the earth in the sight of all who saw you. All who knew you among the peoples are astonished at you; you have become a horror, and shall be no more forever. (Ezekiel 28:17-19)

The Bible, from beginning to end, repeats the certainty of Satan's ultimate humiliation and punishment. In Genesis 3, God makes sure Adam and Eve know that they had chosen the losing side!

Richard T. Ritenbaugh
The First Prophecy (Part One)