I find it interesting that you keep appealing to Isaiah 9:6 as though it is saying that Jesus is the Father, despite several things showing that that is impossible. Isaiah 9:6 is clearly a future prophecy about the Messiah, so we must keep that in mind first and foremost.
It's not at all referring to either the Trinity or Oneness; it’s not at all about the nature of God. It's referring to
the character and divinity of the Messiah.
First, it is worth noting the difference between the first two clauses: "to us a
child is
born;" "to us a
son is
given." That the "child is born" is a reference to physical birth, the incarnation. The "son is given," however, sounds a lot like the language Jesus uses of himself:
Joh 3:13 No one has ascended into heaven except
he who descended from heaven, the Son of Man.
…
Joh 3:16 “For God so loved the world, that
he gave his only Son, that whoever believes in him should not perish but have eternal life.
Joh 3:17 For God did not
send his Son into the world to condemn the world, but in order that the world might be saved through him.
Joh 5:23 that all may honor the Son, just as they honor the Father.
Whoever does not honor the Son does not honor the Father who sent him.
Joh 6:38 For
I have come down from heaven, not to do my own will but
the will of him who sent me.
…
Joh 6:62 Then what if you were to see the Son of Man
ascending to where he was before?
Joh 14:24 Whoever does not love me does not keep my words. And
the word that you hear is not mine but the Father's who sent me.
Joh 15:21 But all these things they will do to you on account of my name, because they do not know
him who sent me.
Joh 16:27 for
the Father himself loves you, because you have loved me and have believed
that I came from God.
Joh 16:28
I came from the Father and have come into the world, and now I am leaving the world and going to the Father.”
Joh 17:5 And now,
Father, glorify me in your own presence with the glory that I had with you before the world existed.
..
Joh 17:8 For I have given them the words that you gave me, and they have received them and have come to know in truth that
I came from you; and they have believed
that you sent me.
Also Paul, in Gal 4:4, and John, in John 1:1-3, 14 and 1 John 1:1-2; 4:9-10, 14.
Gal 4:4 But when the fullness of time had come,
God sent forth his Son, born of woman, born under the law,
Joh 1:1 In the beginning was the Word, and the Word was
with God, and the Word was God.
Joh 1:2 He was in the beginning
with God.
Joh 1:3 All things were made
through him, and without him was not any thing made that was made.
...
Joh 1:14 And
the Word became flesh and dwelt among us, and we have seen his glory,
glory as of the only Son from the Father, full of grace and truth.
1Jn 1:1 That which was from the beginning, which we have heard, which we have seen with our eyes, which we looked upon and have touched with our hands,
concerning the word of life—
1Jn 1:2
the life was made manifest, and we have seen it, and testify to it and proclaim to you the eternal life, which
was with the Father and was
made manifest to us—
1Jn 4:9 In this the love of God was made manifest among us, that
God sent his only Son into the world, so that we might live through him.
1Jn 4:10 In this is love, not that we have loved
God but that he loved us and
sent his Son to be the propitiation for our sins.
...
1Jn 4:14 And we have seen and testify that
the Father has sent his Son to be the Savior of the world.
So, we can see that Jesus's words are echoed by Paul and John, stating clearly that the Son has been
with the Father for all "eternity past," prior to any creation.
Secondly, Isaiah clearly says this child is a son. Again, a father is never his own son nor a son his own father. It is completely irrational to believe otherwise and it would communicate absolutely nothing to us if the Father is his own Son. It's nonsensical. This, too, is shown by all the above passages, and many others. Any notion that Isaiah 9:6 is saying that the Messiah is God the Father is precluded by it mentioning that "a son is given."
Thirdly, not once in the NT is it implicitly or explicitly stated that Jesus is the Father.
All the language he and each NT writer uses speaks of the Father as a different person from the Son. That is very consistent throughout, in numerous places.
Fourthly, although most translations say "Everlasting Father," "Father Forever" is a better translation and carries with it the idea that 'the king [being] shepherd, protector, and leader of the people was their "father,"' according to Dr. Michael Brown (Jewish Objections to Jesus, vol. 2, p. 46). The idea, however, is the same in both, namely, that the Messiah would
become the "Everlasting Father" or "Father Forever,"
not that he already was. (See also Isa. 22:21 on a king becoming a father to his people.)
Fifthly, we do need to note that the Father is in the Son and the Son is in the Father, and so the Son reveals the Father to us (Matt 11:27; John 10:30, 38; 14:9-11; 17:6). In this sense, it could be argued that "Everlasting Father" also speaks of the Son's revealing of the Father to us.
All of this shows that “Father” in Isaiah 9:6 does not and cannot mean that the Son is the Father within the Godhead.
That is unequivocally denied throughout the NT. They are the same substance or essence, yes, but not the same "person." As I have stated many times, we would have to throw out all common use of language, logic, and rules of grammar to believe that the Father and Son are the same person. In which case, God has communicated pretty much nothing of himself to us.
They are eternally co-existant and distinct. This is what John 1:1 and several other passages clearly show us.
No, no. You made the claim so the onus is on you to provide the evidence. Until then, it simply remains your opinion.
No, they don't. Your initial argument here was:
"The councils missed a few important truths when they formulated their creeds.
1) the creeds deny that Jesus was "
made of the seed of David according to the flesh" (
Romans 1:3), stating that the Son is uncreated."
The creeds affirm that Jesus was
both truly man and truly God. Note the "truly man" part, based on his incarnation, his birth as a human.