On the Holy Trinity

Thedoctrine of the Divine Unity is a truth of natural religion; the doctrine of the Trinity is a truth of revealed religion. The various systems of natural theism present arguments for the Divine existence, unity, and attributes, but proceed no further. They do not assert and endeavor to demonstrate that the Supreme Being is three persons in one essence. It is because this doctrine is not discoverable by human reason, that the Christian church has been somewhat shy of attempts to construct ...