This year (2025) marks the 1,700th anniversary of the Council of Nicaea—the first ecumenical council of Christendom that declared that God the Father and Jesus are homoousios (of one essence or nature). There have already been many recaps and discussions of the Creed and its aftermath, and it has been my privilege to make a couple of more general contributions. But I thought it might be helpful to offer some less-commonly noticed features of the fourth century disputes that might still help us today. 1. It Began with Classical Theology Gone Bad. The Arians were strong believers of the absolute transcendence and simplicity of God. The Arians were strong believers…