and how is the fact, that Jesus Christ, the eternal God, became flesh, have anything to do with any "eternal subordination"? You are reading too much human mumbo-jumbo into the Bible!
jesus is a man.
Jesus being the Christ was a man and always God before His human birth and forever since. Now the Greek in the text as
to who was "the God" and who was "God" in John 1:1 was at issue.
But He was NOT a "man", which is what Jesus derived from Mary at the Incarnation! The Bible very clearly says that, "The Word BECAME flesh" (John 1:14), and "God was manifest in the flesh" (1 Timothy 3:16), which Jesus was NOT piror to His Incarnation! The Bible does NOT tell us what "body" Jesus had in His OT appearances, but we do know it was ONLY at His Incarnation, that He BECAME flesh, which is clear that He was NOT "flesh (human)" before this time!
God is NOT controlled by the limits of time, so to Him, everything is ever present! Jesus was foretold to have been "slain before the foundation of the world, but atually died on the cross in about A.D. 33. Are you suggesting that Jesus died before the world was created? this is more nonsense!
How?
How is being someone other than God in John 1:2not a matter of being subordinate? How is being in subjection to God in 1 Corinthians 15:28 not a matter of being subordinate?
These two issues need to be answered first before the issue of being eternal.