Matthew 21:22

And everything you ask for in prayer you will receive, if you have [enough] faith."

James 5:15-18

And if their prayer is [offered] by faith, [God] will heal the one who is sick, and the Lord will raise him up [from his sickbed]. And if he had sinned, he will be forgiven for them [Note: This may imply that the man's sickness was the result of some sin. In any event, his forgiveness would follow his repentance].

Treasury of Scripture Knowledge

Summary

And he cried unto the LORD, and said, O LORD my God, hast thou also brought evil upon the widow with whom I sojourn, by slaying her son?

Bible References

He cried

Matthew 21:22
And everything you ask for in prayer you will receive, if you have [enough] faith."
James 5:15
And if their prayer is [offered] by faith, [God] will heal the one who is sick, and the Lord will raise him up [from his sickbed]. And if he had sinned, he will be forgiven for them [Note: This may imply that the man's sickness was the result of some sin. In any event, his forgiveness would follow his repentance].