Philip Paul Bliss (9 July 1838 – 29 December 1876) was an American composer, conductor, writer of hymns and a bass-baritone Gospel singer. He wrote many well-known hymns, including Almost Persuaded; Hallelujah, What a Saviour!; Let the Lower Lights Be Burning; Wonderful Words of Life and the tune for Horatio Spafford's It Is Well with My Soul.