"Is the Doctrine of the Trinity about God, or Jesus Christ?"

Is the Trinity a doctrine about God, or about Jesus Christ?
Interesting discussion, Some deny that the doctrine that developed in the fourth century was based on Christian ideas, and hold instead that it was a deviation from Early Christian teaching on the nature of God or even that it was borrowed from a pre-Christian conception of a divine trinity held by Plato. Historically one could argue that the doctrine of the Trinity was directly linked to Jesus Christ. More precisely the evolution of organic Christology from homoousios (of the same substance of God) opposed to homoiousios (of similar substance of God) The increased pressure that was placed on Christians to define the relationship between Christ and God pushed for a intense reconsideration of the theology surrounding the relationship of Divinity (if any) between Christ and God.
“If the Word had not been made flesh, there would have been no stumbling block for Jewish monotheism.” (AW. Wainwright p.245) The theological community had to move from the Doctrine of the Trinity being focused on Christ to being inclusive to include a broader discussion on the nature and characteristics of God…particular the incarnation
J.R. Illingworth made two fundamental points; first, he stressed that the doctrine of the Trinity had to project from the contemplation on the true identity of Christ, more specifically the doctrine of the incarnation. Illingworth alluded to that the argument was not primarily about the identity of Jesus; it was more about the distinct character and nature of God, who was incarnated in Jesus of Nazareth. Thus, the doctrine of the Trinity can be seen as an attempt to represent God, God who while still transcendent, became incarnate in Christ, and that incarnation now dwells in the hearts of all believers via the Holy Spirit. (p.245)Illingworth’s perception of God was a personal relationship…his interpretation was radically different from the philosophical “God.”
Prior to the incarnation the intellectual process of defining God (as ignorant as that sounds) was impersonal. The incarnation called out the humanity and character of god. The doctrine of the Trinity “is the encounter between Divine and human persona in the economy of salvation.” (p.246) Christianity holds that God is personal this is both from Biblical witness and the Christian experience of God (prayer and worship).
Although, the doctrine of the Trinity may have started with the task of being about Jesus Christ’s identity, it had to evolve into a state of being about both Jesus and God. The Trinity is a mystery…..one that is not concrete in definition or explanation. Logically I would argue that the Doctrine of the Trinity is more about the role of Jesus Christ then it is with God. For me all things are reflections of God. The Doctrine of the Trinity is important in that it forces us to contemplate the mystery of Divinity, salvation, and truth. It is far more rational to believe that Jesus shared in a similar substance of God (homoiousios), rather than the same substance (homoousios) Yet, Christianity forces us to choose….that my friend is where faith enters through doubt.