Now, this is very controversial because even his own bishop in Alexandria viewed the Father and the Son to be of the same substance. Now, today you might say, hey, isn't this just wordplay? It feels like it's semantic, which is really debating around the meaning of words. But at the end of the Roman Empire and as we get into the Middle Ages, this was a major issue of philosophical and it would sometimes bleed over into political debate. And so Constantine, who we mentioned, has a sympathy towards the Christians. He allows Christianity to be tolerated. He does not like this idea of this debate and he wants to help unify the Christians.