Only those who are spiritual perceive the reality of the spiritual foe and hence engage in battle. Such warfare is not fought with arms of the flesh. Because the conflict is spiritual so must the weapons.
Watchman NeeIf whatever men know comes through their brain without the Holy Spirit regenerating their spirit, then their knowledge will help them not one whit. If their belief rests in man's wisdom and not in God's power, they are merely excited in their soul.
Watchman NeeSatan can only attack us from the outside in. He may work through the lust and sensations of the body or through the mind and emotion of the soul, for those two belong to the outward man.
Watchman NeeIn order for the inner man to be strengthened with power through the Holy Spirit, the children of God must discharge their responsibility. They need to yield specifically to the Lord, forsake every doubtful aspect in their life, be willing to obey fully God's will, and believe through prayer that He will flood their spirit with His power.
Watchman Nee