Psalm 66:16-20

Come and hear, all ye that fear God, and I will declare what he hath done for my soul. I cried unto him with my mouth, and he was extolled with my tongue. If I regard iniquity in my heart, the Lord will not hear me: But verily God hath heard me; he hath attended to the voice of my prayer. Blessed be God, which hath not turned away my prayer, nor his mercy from me.

James 5:13-15

Is any among you afflicted? let him pray. Is any merry? let him sing psalms. 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 have committed sins, they shall be forgiven him.