A novel-biography of King David"", the sub-title of the book, accurately describes the nature of this latest in the HEROES OF GOD series. The familiar Biblical account of the life of the colorful David is told in story form so that t battle with Goliath, the figures of Sul, Jonathan, Absolom and David himself are made much more graphic for teen-age readers. The author is a skilled writer ly of articles and books beamed at young people. She is active in church work through the church young people and the teen-agers in her own home she has learns how to make old stories seem freshly interesting to them.