You are not denying it.
Joshua, I am not out to “bust your chops,” but to steer you to the truth concerning this doctrine; as I have stated, what you are presenting was declared heretical in the fourth century. My only concern is that you come to a knowledge of the truth.
That said, let me steer you to B.B. Warfield’s,
The Biblical Doctrine of the Trinity.
Here is Warfield’s opening paragraph:
The term “Trinity” is not a Biblical term, and we are not using Biblical language when we define what is expressed by it as the doctrine that there is one only and true God, but in the unity of the Godhead there are three coeternal and coequal Persons, the same in substance but distinct in subsistence. A doctrine so defined can be spoken of as a Biblical doctrine only on the principle that the sense of Scripture is Scripture. And the definition of a Biblical doctrine in such unBiblical language can be justified only on the principle that it is better to preserve the truth of Scripture than the words of Scripture. The doctrine of the Trinity lies in Scripture in solution; when it is crystallized from its solvent it does not cease to be Scriptural, but only comes into clearer view. Or, to speak without figure, the doctrine of the Trinity is given to us in Scripture, not in formulated definition, but in fragmentary allusions; when we assembled the
disjecta membra into their organic unity, we are not passing from Scripture, but entering more thoroughly into the meaning of Scripture. We may state the doctrine in technical terms, supplied by philosophical reflection; but the doctrine stated is a genuinely Scriptural doctrine.
Warfield deals with what can be gleaned from the O.T., and the further revelation of the N.T. You can read the complete article online
here, and they have a printer friendly version if you care to print it out and work through it, Bible in hand.
I disagree with the interpretation you have given of John 3:13, for more in formation on that, read what A.T. Robertson, a renowned Greek scholar, says about that verse
here.
Using the
Nestle-Aland Greek New Testament, a wooden, literal translation of that verse would read:
and no one has gone up into the heaven except the out of the heaven one having gone down, the son of man. There is no wording that says, “the Son of Man IS in heaven.”
I hope you read what I linked, and pray about.