In the Bible, the healing of God was often carried out through the use of physical symbols. Faith is a necessary element for effective prayer. It is through our faith that God chooses to respond to prayers. The healing power is God's power as He chooses to respond to our faith. We must not neglect to ask for forgiveness of sins, even when we are praying for each other.
Successful prayer requires confession of sins.
Sin separates us from God, making our prayers ineffective. Therefore, we should confess our sins and pray for forgiveness as readily as we pray for healing. God's pardon is the best way to be healed, much more satisfying and lasting than a doctor's medic. Confession of sin to one another is valuable. Knowing each other's shortcomings, knowing that others stumble as we do, leads to intimacy.