 That which is the deadly weapon that was unsheathed by the serpent in the garden so to speak, and thrust into the heart of Adam, and every son of Adam who would follow, is the deadly power of unforgiven sin. That's what Satan has. He is the God of this age. He is said to blind the minds of the unbelieving, lest the light of the gospel of the glory of Christ, who is the image of God, should shine upon them. And Satan orchestrated his affairs in this wicked world to keep us in bondage to sin. And then Satan is the accuser, the adversary, the prosecuting attorney. He stands and testifies against you. If the penalty due your sin has been paid, if you are forgiven in Christ Jesus our Lord, if you stand as one who is declared righteous through faith in the Lord Jesus Christ, then you are no longer an enemy of God. You are no longer guilty. There is therefore now no more condemnation. You are in union with his Son through faith, and the devil has nothing further to say. He's got nothing.