But he is not more powerful than God, or more powerful than a human being who has communion with God, who has the Word of God, who has the Comforter to strengthen him. And the devil's weapons, such as sin, evil, darkness, and death are not real things at all, but only the absence of real things. They are the absence or the rejection of grace, obedience, light, and life. If we do not join the devil in rejecting these gifts of God, the absence of them cannot harm us. Clinging to the gifts of God, however, can be more difficult than it sounds, as the cross of Jesus Christ must remind us.
Emptiness does have power.
A vacuum is an emptiness, an absence of air, and it is the vacuum created by a vacuum cleaner that sucks up all the dirt, along with anything else that isn't attached to something stronger than the vacuum. If we are not attached to God, the emptiness of the devil can easily suck us up, and we can find ourselves in Satan's kingdom of the flies and garbage. Adam and Eve made themselves and their children, including us, the slaves of emptiness. We begin our lives with this weakness, unattached to the goodness of God. It was to reattach us to God the Father by grace and life and light that Jesus Christ came into the world.