I feel like he is his eyes are like a god but his aura is different he’s probably half god half demon

yeah, that's what I'm thinking as well.

My thoughts exactly

I bet he's a traitor of one of those two factions. Remember when the author mentioned how the demons suddenly got their hands on that special sealing technique? And here's a guy knowledgeable on the technique and with a godly aura. Considering the author's lack of plot twisting, I wouldn't be surprised if these were related.

He did say that it was more appropriate to think of him as "the devil" when SYX first awoke on this continent. So the half/half theory definitely works.