13 Is any one of you in trouble? He should pray. Is anyone happy? Let him sing songs of praise. 14 Is any one of you sick? He should call the elders of the church to pray over him and anoint him with oil in the name of the Lord. 15 And the prayer offered in faith will make the sick person well; the Lord will raise him up. If he has sinned, he will be forgiven. 16 Therefore confess your sins to each other and pray for each other so that you may be healed. The prayer of a righteous man is powerful and effective.
17 Elijah was a man just like us. He prayed earnestly that it would not rain, and it did not rain on the land for three and a half years. 18 Again he prayed, and the heavens gave rain, and the earth produced its crops. 19 My brothers, if one of you should wander from the truth and someone should bring him back, 20 remember this: Whoever turns a sinner from the error of his way will save him from death and cover over a multitude of sins.
James 5:13-20 (NIV)