... ah ha...
If I found myself on a chaise longue in a house church in Galatia, I am male, I incline to the presentation of God as listed in the Hebrew Scriptures.
I understand Monotheism only, look forward to the Messiah, upon whom are bestowed all the blessings of Kingship and Authority by his Heavenly Father. In my mind, I have accepted Jesus of Nazareth as the Son of God, the one begotten Son, who came and died for me...
I then hear Paul (an eminent teacher amongst the Jews) warn of others preaching "another Gospel"... I would be highly suspicious of an agressive group of "so-called" brothers who tried to twist my relationship with Almighty God and The Christ into a triune Chaldean/Hellenic concept.
Would you have me believe, that at the baptism of my Lord, the voice of his Father came from Heaven, a dove appeared above his head, and all these three presences were part of the same Personage. Come on, Essan...
..You know that is NOT the gospel.
The twisting of written text appeared after the canon was compiled, paucity of koine Greek into English is to blame for much... and you are left with roughly 25 texts (I have offered to list them) that could possible read both ways.
The overwhelming share of the Scriptures speak of Almighty God and the "Sent forth one" as separate beings.
I offer you the poignant words of Paul in Galatians 1:8 again...