Not what you think

The only weapon that scares the devil and his armies is the same one that scared him in the wilderness temptations of Jesus. That weapon is the truth of the New Covenant—the living Word of God. Only the Lord’s truth can set us free. He promises to be God to us...to cleanse us, forgive us and cast away all our sins...to fill us with His Spirit...to lead, instruct and guide us by His Spirit and put within us all the power we need to walk in holiness and obedience.— It Is Finished, page 153

<idle musing>
Got ya! I'll bet your thought he was going to say "quoting from scripture" or "the Bible" didn't you? That's what you've been taught, isn't it? But only Jesus, the living Word of God, can face the enemy and temptation without losing. You can quote scripture until you're blue in the face, but without the living power of the Holy Spirit inside you, you'll still lose; I know, I've done it in the past—many times...always lost, too unless I allowed the Holy Spirit to control my thoughts and actions! You can win too, but you have to stop worshiping the Bible and start relying on the Holy Spirit!
</idle musing>