Sickness is a direct consequence of the fall of man and his continuance in sin. Redemption not only dealt with sin but also its consequences, which includes sickness and diseases. Christ died on the cross; bore not only our sins, but also our sicknesses. Healing for our bodies from God comes to us through appropriation of the finished work of Christ on the cross of Calvary by faith in the word of God and manifestation of the gift of healing. Not only believers receive healing for our bodies, but also we may minister healing and deliverance to others in the name of Jesus. This can be accomplished by laying on of hands, praying for others in absentia and by getting bible believing church elders to anoint them with oil in the name of the Lord.
2 Corinthians 1:19-20
1 John 3:8