Psalm 2:7 says: “I will declare the decree:The Lord has said to Me,‘You are My Son,Today Today I have begotten You" See... See also Hebrews 1:5; 5:5 (and compare with Mark 1:9-11).
Psalms 2:7 (ignoring those that say it talks about David); and Hebrews 5:5 - clearly speak in terms of "TODAY" I have begotten thee". (emphasis on "today").
What was the relationship of Jesus to God "the father" before the day Jesus became a begotten son of God?
NOTE: I have taken care to read the posts that speak about Jesus as a son of God. They don't ask the same question as to what he was before.
Edit:
Question is addressed to those who believe that Jesus is "the word" spoken of in John 1:1; those who accept him to be the "only begotten son" or the second person in the Trinity. I am not sure whether only Trinitarians subscribe to these ideas.
My understanding of "mainstream" Trinitarian Christianity is that God has always been "the father", "the son ("word")", and "the Holy spirit". When one reads Hebrews 5:5: "Today I have begotten you", it signifies a change in relationship. Does it mean that before "THAT day", divine Jesus or "the Word" was something else to God but not a son? That is the relationship I am inquiring about.