The classical doctrine of God expresses that the God of the Bible is triune, a se, simple, immutable, impassible, eternal, and the sovereign Lord over his creation, which he created from himself. Modern streams of theology, within the evangelical circle, continue to promote a doctrine of God that sharply contrasts the classical view—the traditional view of God in Christian theism. Therefore, a critical response to such a theology is needed. This study is a comprehensive analysis and sustained critique of Thomas Jay Oord's open/relational doctrine of God. Oord's model substitutes process metaphysics for classical metaphysics, while attempting to retain foundational Christian doctrines that were established within a classical metaphysical framework.