The fundamental identity of God.

I'll just stick with Genesis.

 

The fundamental identity of God, besides merely always existent (I AM), is really, in His eternal character, in other words:

1Jn_4:8 He that loveth not knoweth not God; for God is love.

1Jn_4:16 And we have known and believed the love that God hath to us. God is love; and he that dwelleth in love dwelleth in God, and God in him.

Gal_5:22 But the fruit of the Spirit is love, joy, peace, longsuffering, gentleness, goodness, faith,

So, it is not enough to merely demonstrate that God is 'uncaused existence'.

God is also "life", "living":

Exo 3:14 And God said unto Moses, I AM THAT I AM: and he said, Thus shalt thou say unto the children of Israel, I AM hath sent me unto you.

Joh_1:4 In him was life; and the life was the light of men.

Joh_14:6 Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me.

Joh 8:58 Jesus said unto them, Verily, verily, I say unto you, Before Abraham was, I am.

Premise 1. agreed.
Premise 2. agreed.
Premise 3. disagree. (The Son, has His Father (God)) The break down here is in the definition (scripturally of JEHOVAH Elohiym; 3 Persons/Beings (Father, Son and Holy Ghost/Spirit) working together in at-one-ment, one in character, not in person)

Hence Jesus said:

Joh_20:17 Jesus saith unto her, Touch me not; for I am not yet ascended to my Father: but go to my brethren, and say unto them, I ascend unto my Father, and your Father; and to my God, and your God.

Psa_22:1 To the chief Musician upon Aijeleth Shahar, A Psalm of David. My God, my God, why hast thou forsaken me? why art thou so far from helping me, and from the words of my roaring?

Mat_27:46 And about the ninth hour Jesus cried with a loud voice, saying, Eli, Eli, lama sabachthani? that is to say, My God, my God, why hast thou forsaken me?

Mar_15:34 And at the ninth hour Jesus cried with a loud voice, saying, Eloi, Eloi, lama sabachthani? which is, being interpreted, My God, my God, why hast thou forsaken me?

It is written:

Isa_48:16 Come ye near unto me, hear ye this; I have not spoken in secret from the beginning; from the time that it was, there am I: and now the Lord GOD, and his Spirit, hath sent me.

Luk 4:18 The Spirit of the Lord is upon me, because he hath anointed me to preach the gospel to the poor; he hath sent me to heal the brokenhearted, to preach deliverance to the captives, and recovering of sight to the blind, to set at liberty them that are bruised,

Gen_19:24 Then the LORD rained upon Sodom and upon Gomorrah brimstone and fire from the LORD out of heaven;

Zec 3:2 And the LORD said unto Satan, The LORD rebuke thee, O Satan; even the LORD that hath chosen Jerusalem rebuke thee: is not this a brand plucked out of the fire?

etc.

This brings us to another aspect, or eternal characteristic, or relationship, of JEHOVAH Elohiym, in that Family has always existed, which ties right back into 1 John 4:8,16. This again, speaks of Creator, since that which is family, is love, is life, desires to have more life and so multiplies (creation).

So, again, while you have a good start, the middle gets flubbed, because you have not kept sight on the character and relationship of the 'uncaused existence'.

So, I would not conclude that the 'fundamental identity' is merely 'existence', or simply being 'uncaused', I think it is much deeper than that, though I would not disagree in entirety about JEHOVAH Elohiym as 'uncaused existence', since "I AM" is self-declared unto us.

 

You have confused "God" with "Godhead".

The Son is equal with the Father in nature, not in position.

Type:

Gen_41:40 Thou shalt be over my house, and according unto thy word shall all my people be ruled: only in the throne will I be greater than thou.

Reality:

1Co_11:3 But I would have you know, that the head of every man is Christ; and the head of the woman is the man; and the head of Christ is God.

1Co_15:28 And when all things shall be subdued unto him, then shall the Son also himself be subject unto him that put all things under him, that God may be all in all.

Even as it was from eternity. The Son was always in the position of submission to the will of the Father (Psalms 40:8; Proverbs 8, etc)

Therefore, the Son (always was Christ; Luk 2:11) always had God His Father. The Father is in authority over the Son, and the Son in submission to the Father, though equal in nature (eternal Deity).

Therefore, again your premise 3 is still in error (unless you claim to teach what Catholicism teaches, which then I can see where your error stems from).

 

That is a heresy.

Phil. 2:5-8. The Son did not "always" have "two natures", otherwise, He could never have 'took upon him the form of a servant', to be 'made in the likeness of men'. There is now in the eternity that which never existed before, the resurrected immortalized glorified flesh of men, the God/man - Christ Jesus. Before, He was only 'in the form of God', until it was said, 'Lo, I come (in the volume of the book it is written of me,) to do thy will, O God.', 'Sacrifice and offering thou wouldest not, but a body hast thou prepared me:'