Ok, here I go.
IMO the concept that's expressed in the trinity doctrine is closer to the truth than the "Jesus is a created being" idea.
The way I understand it begins with the realization that "The Word of God" is the "Word" that God uses to express His "Being". It isn't the bible or any other holy book, it is the word that God uses to express the thought of "I AM". From that point, I've come to the conclusion that -even though a "word" by it's nature is subject to the author - the "Word" that is the perfect expression of "God's Being" would by virtue of the Spirit of that same Being be the same as that Being. Accckk...how can I say this more clearly?
The Word that exists to express what God IS would have to BE what God IS in order to complete it's purpose of expressing the Being of God. The thought being expressed is what God "IS". God's expression of the thought "I AM" would contain everything that God is and since God's Being is eternal so is the Word that reflects that Being.
In other words, the Word of God (ie. His expression of Self - not the Bible) is everything that God "IS". If not, than the Word would be an imperfect expression of God.
Words seem to be inadequate to try to explain something like this, but the trinity doctrine is an attempt to do that. It's trying to explain why Christ has to be God, and He does have to BE God because He IS the Word of God's Being.
Lea