Of one being with the Father
The Council of Nicaea
In the summer of 325 they come to Nicaea from every corner of the empire, and some of them can barely walk. The persecutions ended only a dozen years before, and the room is full of their evidence: a bishop with the eye-socket scarred shut where it was burned out, hands missing fingers, backs bent under old wounds. These are men who nearly died rather than deny that Jesus is Lord, and now they have gathered to settle, in words, exactly who that Lord is. The question is not abstract to them. A teaching named for the presbyter Arius had spread through the church like a fever, insisting the Son was the highest of creatures but a creature still, made, with a beginning, not God in the full sense. It had thrown the church off its bearings for years. At Nicaea the church finds them again. Refusing the smooth half-truth, the council confesses the Son as of one being with the Father, fully God, eternally begotten and not made. They do not feel they are inventing anything. They are anchoring, at last, to what John had said in his first breath of a Gospel, that the Word was with God and the Word was God.
“In the beginning was the Word, and the Word was with God, and the Word was God.”
— John — John 1:1 (WEB)
“In him all the fullness of the Deity dwells bodily.”
Not every conviction carries the same weight, and a reorienting faith has to learn which ones are load-bearing. The scarred bishops at Nicaea knew. They had endured fire for the name of Christ, and they would not now let the church drift on the one question everything else rests upon. If the Son is only a creature, then the cross is only a noble man dying, the gospel is only good advice, and the worship of Jesus is idolatry. The whole house stands or falls here. So they did the slow, contentious, exhausting work of getting one thing exactly right and saying it plainly. There is a temptation, when you are rebuilding, to hold every belief with the same loose grip, or to treat doctrine as cold compared to experience. But some truths are the floor. Lose them and the rooms you furnished so carefully fall through into the dark. The discipline of reorientation is partly this: telling the weight-bearing convictions from the decorative ones, and refusing to let the foundation blur to keep the peace.