Book of James

and the prayer of faith will heal him who is sick, and the Lord will raise him up. If he has committed sins, he will be forgiven.

Confess your offenses to one another, and pray one for another, that you may be healed. The effective, earnest prayer of a righteous man is powerfully effective.

Elijah was a man with a nature like ours, and he prayed earnestly that it might not rain, and it didn't rain on the earth for three years and six months.