William Cowper had a miserable childhood; his mother died when he was six and he was placed in a boarding school where he was constantly bullied.  Terrors of life overwhelmed him to the point that he tried to commit suicide twice.  In 1756 he was committed to an asylum where he was assigned a Christian doctor.  Part of the terror that plagued him was the knowledge of his sin.  He had written and said often, "My sin, my sin, O for some fountain open for my cleansing."  He did not know where to turn until his doctor introduced him to the person and work of Christ.  When he recounted his conversion, he referred to Romans 3:25,26 "God presented him as a sacrifice of atonement, through faith in his blood. He did this to demonstrate his justice, because in his forbearance he had left the sins committed beforehand unpunished--he did it to demonstrate his justice at the present time, so as to be just and the one who justifies those who have faith in Jesus."  These verses "turned the light on" in his heart and gave him peace, he later wrote the Hymn "There is a Fountain."  The opening lines express his testimony, "There is a fountain filled with blood, Drawn from Immanuel's veins, And sinners plunged beneath that flood, Lose all their guilty stains."  Cowper found what millions have learned to be true over the past 2,000 years, the cross of Jesus has provided the means for wicked sinners to be declared righteous through faith.  The blood of the God-Man was sufficient for our cleansing and this pardon is available by faith.  Have you been to Jesus for the cleansing flood?