I don't believe that there is any such thing as "the pre human Son of God". Jesus was sent by God via a normal human birth.
Philippians 2 is teaching us to have the attitude of humility that Christ had. He emptied himself of all his reputation and the things due him because of his royal status being from the line of David and as the Messiah, the anointed Son of God but remained humble as a servant, obedient to his Father even to the point of death and because of this his Father, the one true God, highly exalted him, placing him at His own right hand - all to glorify God.
Phil 2: 5 Have this mind among yourselves, which is yours in Christ Jesus, 6 who, though he was in the form of God, did not count equality with God a thing to be grasped, 7 but emptied himself, by taking the form of a servant, being born in the likeness of men. 8 And being found in human form, he humbled himself by becoming obedient to the point of death, even death on a cross.
Jesus was in the form of God and then took the form of a servant and became a man. That's what it says isn't it. It certainly looks as if it is speaking of the mind of the pre human Christ, who decided to humble Himself and become a man and be obedient.
John 17:4 I have glorified You on earth by accomplishing the work You gave Me to do. 5
And now, Father, glorify Me in Your presence with the glory I had with You before the world existed.
This is Jesus saying that He had glory in the presence of God His Father before the world existed. Isn't it?
Why not just say "Jesus is God" instead of "Jesus has the essential nature of God"? Of course God has the essential nature of God! Also does not say "Jesus, being God" but rather "being in the form of God" reminding us that Jesus fully represented the Father in every possible way. (morphe - outward appearance Bullinger, Thayer, Kittle) Yes, Jesus is the Son of God (not God the Son). Yes, Jesus is an heir of God and we are joint heirs with him and yes, Jesus was exactly like his Father because he always did his Father's will. There is only one true God and that is the Father.
I find it more complex than just saying that Jesus is God. Jesus does not call Himself God but the Son of God and the Son of Man. He has both the nature of God His Father and the nature of a man.
If I called Jesus "God" then you might decide that I am saying that Jesus is the Father, the one true God, but I am not saying that. I say about Jesus, what He said about Himself. He said, "I am in the Father and the Father is in me." He said,"I and the Father are one".
So if I could see the Father I would know that the Son is in Him.
And we know that Jesus and the Father are one "thing". I can't think of anything else that Jesus may have meant than one God.
IOW Jesus did not want us to say that Jesus is a separate God to His Father, not 2 Gods, but one God.
I hear there is debate over the meaning of "morphe" in Phil 2 and it's use with the Greek word "shema" there. Nevertheless whatever it means, we can see in Phil 2 that having the form of God made Jesus equal to God, before He became a man, and He did not mind giving this equality up for the sake of obedience to His Father.
The Phil 2 passage is about humility between equals after all, and about Jesus humility before His equal, His Father.
The Father is the one true God because His Spirit and His Son (who is His equal) have their source in Him, the Father.
The Son is the Son because His life comes from His Father, (and that is the way it has been always,) but not because He was created by the Father at any time.
Correct, they don't say "God cannot become a man" BUT they absolutely state God is NOT a man. Correct, Jesus did not lie but that verse, Numbers 23:19, is not talking about Jesus. Correct, Jesus was the perfect man - always being obedient to his Father. Did Jesus ever battle within himself when it came to doing his Father's will? All mankind was created in the image of God. Jesus is the firstborn of the new creation being the firstborn from the dead, i.e. firstfruits of the new creation. And when he returns, we will bear his image - we shall be like him because we shall see him as he is - this is our hope.
So are you saying that if God became a man that He might lie or change His mind?
But Jesus is exactly life His Father and did not sin at all.
What I am doing is looking at the whole verse and seeing what it means overall. It is talking about what God is like, He is not like a man in those respects.
What you seem to be doing is taking one part of the verse out, and making it about that part,,,,,,,,,,,,,,,, as if God is saying. "I am not a man and will never be one".
Hosea 11:9 is God saying that He is Holy and does not act on His strong feelings like men do. It is not about God not being a man or never becoming a man.
IOWs I don't think that it can be said that Jesus was not God just because He was/is a man.