In every recent attempt to write an account of Old Testament Theology, one and only one theme is universally put forward, i.e., God Himself. But God, or Yahweh as his name is revealed in Scripture, is more than merely a theme. Yahweh is the subject of the Old Testament, but also its object. His mighty acts are the basis of history; his loving kindness is the foundation of human relationships, and his Spirit the source of all wisdom. The Old Testament, like the New, is a book about God; however much it traces the human pilgrimage of the sons of Adam or the family of Abraham, the reader never loses sight of the fact that without Yahweh there would have been nothing to reveal.