This was Christ's vision of the effect of His work in man's nature, and on man's behalf. For ages Satan had vaunted his power over man; but now and henceforward the demon-nature was to be vanquished by the name and nature of Jesus Christ. "The demons are subject to us in Thy name." Whenever you are tempted by the demon of alcohol, of passion, of jealousy, or any other, claim instantly the protection of the Name which is above every name: make the Name and Nature of Jesus your strong tower into which you shall run and be safe: realize all that He stands for: and you will find that the demons will be subject to you. In your life also, Satan will fall from heaven, and be trodden under your feet.
And what is true in your own life is true also of your influence over others. If you dare to live in the risen Christ, you share His empire and all the fruits of His victory over Satan. He gives you authority over serpents and scorpions, and over all the power of the enemy. The Christ nature within you becomes the dominant, triumphant power to which all power must ultimately yield. Dare to use it. In conflict with the demon spirits that haunt so many lives; in antagonizing the giant forces that are so strongly entrenched in our natural life, the ravages of vice-be sure to rely, not on numbers or organization, but on the name of Jesus, used not as a charm, but as representing His living and ascended might.
And let it be carefully noted that as the success of these disciples over a few demons in the villages and towns of Israel reacted on the balance of power in the heavenlies, so there is no victory won anywhere by any lonely disciple, or handful of disciples, that does not react on the entire battlefield.