On this subject, I suggest that you read Jason Kerrigan's "Restoring the Biblical Christ: Is Jesus God?" It is all about Biblical exegesis. Very insightful. The Bible does not declare that Christ is God himself.
I have a friend who research the doctrine of the Trinity very thoroughly and developed a hundred-odd page notebook of his findings. I've never believed this doctrine, personally; it's both illogical and unscriptural.
John 17:22 -" I have given them the glory that you gave me, that they may be one as we are one:" Based on John 17:22 - is Jesus praying for God to now be the trinity + the 12 apostles? So God is now made of 15 people? Or could it be that God and Christ and the Disciples are one in thought, motives, reasoning, personality . . . .?
John 20:17 -"Jesus said, "Do not hold on to me, for I have not yet returned to the Father. Go instead to my brothers and tell them, 'I am returning to my Father and your Father, to my God and your God.' " Jesus has a God. How can he be God?
Jo 10:30 - "I and my Father are one." The Greek word translated one - hen - means, in the Unitarian understanding, one in purpose. But a staunch Trinitarian may interpret it to mean one in essence. It always boils down to how we interpret the Bible. What does 'one' really mean? Seems like it should be a simple answer, right? But it's rarely as simple as that.