It say God is the Father.
The Son Jesus was still a mystery not yet revealed.
It says God "our" Father. Not God "the" Father.
That you reject that there is a difference only leads to one thing.
A rejection of Jesus Christ as God.
Because if, as you say, God the Father alone is God, and beside the WHO of God the Father there is no other, then neither Jesus the Son nor the Holy Spirit can be God, which contradicts scripture.
Yes, you say Jesus is the Father. But that also goes against Scripture.
You say that the HS is Jesus' Spirit, but that too goes against scripture.
The Holy Spirit is the Comforter whom Jesus sent.
Jesus is the Savior of the world whom the Father sent.
According to your logic, the Father is God, and there is no other. Because scripture CLEARLY distinguishes the Father from the Son from the Holy Spirit. Therefore, you must either say that only God the Father is God, and not the Son nor the Holy Spirit and reject Scripture, or you must accept Scripture, and reject that the Son and Holy Spirit are distinct Persons within the Godhead, a unity of three Persons, who are one God.