Reniaa,
I see that you did not understand my question.
JWs are forever on the offensive about the Trinity doctrine. They complain that it is not "rational", that it "cannot be understood".
So I am asking for the JW explanation of "God". I want to see their rational, undertandable explanation of YHWH and Jesus Christ. I want to know their rational definition of holy spirit. "Theology" means "the study of God". I am not seeking a Systematic Theology, which is different.
However, I will respond to your reference to John 17:3, which speaks of the experiential relationship between a believer and the owner of Eternal Life. As you are showing, it is clear that when we know the only true God, we already have eternal life (compare also 1 John 5:10-12).
"Now this is eternal life: that they may know you, the only true God, and Jesus Christ, whom you have sent."
I am pleased you know this verse, and that you are now enjoying this knowledge about your state with God, Eternal Life, which you confirm with your use of John 6:47.
Doug