In all honesty. I have read many theology books. I have never heard of this before. When I was looking it up I came across some who imply this same notion. But I do not see it in early Christianity( Church Fathers). The original argument is about divinity becoming human. Where did you first here this Son definition. I never read this before. Just curious not to belittle. Who wrote this?
He doesn’t understand heresies and that the Nicene Creed settled many a heresy.
If the Son was begotten from the Father in eternity, He came from the Father and was not, as is made clear in Jn.1:1, in the beginning WITH God and God.
The Nicene Creed is Platonic, it has the 'Son' coming from the Father, instead of always existing with him as God.
The Creed has the Father 'giving birth' to the Son in eternity!
Now, what the Creed defenders want you to do is suspend reason and see no chronological aspect to this even though they are making one by saying the Father 'begot' the Son.
If the Father begot the Son in eternity, the relationship had a beginning and therefore the Son had a beginning.
It is Platonic, non-scriptural doubletalk.