Is any sick among you? Let him call for the elders of the church; and let them pray over him, anointing him with oil in the name of the Lord:   And the prayer of faith shall save the sick, and the Lord shall raise him up; and if he has committed sins, they shall be forgiven him. 

 Tell your short comings one to another, and pray one for another, that ye may be healed. The effectual fervent prayer of a righteous man avails much. 

Elias was a man subject to like passions as we are, and he prayed earnestly that it might not rain: and it rained not on the earth by the space of three years and six months and he prayed again, and the heaven gave rain, and the earth brought forth her fruit.