"Blessed Assurance" is another beautiful hymn by dear Fanny Crosby. One day, Fanny was visiting her friend Phoebe Knapp. Sitting at the piano, Phoebe began playing a tune she had recently written. She then asked Fanny, "What does this tune say?" Fanny knelt in prayer for a few minutes; then rising, she said, "It says Blessed assurance, Jesus is mine! O what a foretaste...”