Snakes represented Egyptian power. Aaron’s staff to turn into a snake is nothing less than a direct challenge to Pharaoh’s power. His magicians counter this attack by duplicating the feat, but their snakes are swallowed in the process. This sign and the ten plagues display one by one Pharaoh’s impotence, and that, God is the ultimate conqueror. This passage gives us a snapshot of the drama to unfold God’s final victory over Egyptians, and Jesus Christ crushing snake’s head in future.