The Eternal Relations of Origin, Causality, and Implications for Models of God

The classical doctrine of the eternal relations or origin (ERO) claims that these relations are (1) atemporal and (2) causal. In this paper, I investigate the casual nature of the ERO, highlighting that the patristic and medieval Christian thinkers who developed this doctrine understood causality in terms of Aristotle’s efficient causality, highlighting that these are casual acts that produce an effect. I then provide an analysis of some of the major theories of efficient causation on offer in contemporary metaphysics to see which theory best comports with how the ancient and medieval Christian thinkers understood the efficient–causal aspect of the ERO, concluding that a powers theory of causation seems to work best. I conclude by discussing the implications the classical doctrine of the ERO has for models of God, arguing that they are compatible only with classical theism and neoclassical theism.