Unbelief strips us of covering and makes us open and vulnerable to the devil's attacks. Holding on in faith to the promises of God, ensures that we shall obtain all that is needed for victory. This not only renders the arrows ineffective, but totally extinguishes the doubts. Using God's Word is devastating to the enemy of prayer, because it is expressing the mighty faith of God, to which the evil one has no answer. Therefore in intercession, use the written Word of God as the spoken Word of God.
Salvation has a much wider application than what is usually expressed.
It is more than deliverance from sin. It is God's saving health, for spirit, soul and body. It is by attacking the mind or the head, that the devil brings debilitating sickness to the body, so that the thing feared, actually comes upon the one fearing. It is a lie of the devil that the bed of sickness aids prayer and intercession. When we examine our salvation in God's Word, we find it to be a reasonable faith, founded upon the reliable Word of God.