1 Kings 17:23-24

Elijah said, See, thy son liveth And see the power of prayer, and the power of him that hears and answers prayer, that kills and makes alive. The woman said, Now by this I know that thou art a man of God Though she believed it before, and termed him a man of God, (1 Kings 17:18,) which she might well do, having been a daily witness of the miraculous increase of the meal and oil; yet, when she saw he did not cure her sick child, but suffered him to grow worse, and die, she began to doubt of it: but upon seeing her son revive, her faith revived with him, and was mightily confirmed. For, through the joy of having him restored to her again, this latter miracle appeared to her much greater than the former. The word of the Lord in thy mouth is truth The God whom thou professest to believe in, is the only true God; and the doctrine and religion which thou teachest, is the only true religion; and therefore henceforth I wholly renounce the worship of idols.