Our Powerless Enemy

What if we realized the enemy is powerless...unless we give him power? Would that change things? "Shall I look to the mountain gods for help? No! My help is from Jehovah who made the mountains! And the heavens too! He will never let me stumble, slip, or fall. For he is always watching, never sleeping. Jehovah himself is caring for you! He is your defender. He protects you day and night. He keeps you from all evil and preserves your life. He keeps his eye upon you as you come and go and always guards you." (Psalm 121 TLB)