FACT:
The Trinitarian dogma is a late fourth-century invention
It was not a belief taught by Jesus or of any of his Disciples. The dogma that Constantine was pushing so hard was intended to put an end to dissensions within the fourth-century Church who couldn't agree if Jesus was of divine origin or was the divine.
Its important first that before I go any further you understand that this
WASN'T A TEACHING OF CHRIST OR HIS DISCIPLES.
Now on to John 1:1 and your other scriptures.
Greek (The language the New Testament was written in) doesn't have any indefinite articles ("a" or "an"). So say for instance in Groundhogs Day when Bill Murray says -
"I'm not the God I'm "a" God" written in Greek it would say
"Billy Murray was God" Which randomly enough is a true statement.
Now after the Greek Manuscripts were written they were also translated into Sahidic Coptic which was spoken in Egypt. Coptic unlike Greek has an indefinite article. When they got to John 1:1 do you know how they translate that verse?
The Word was "A" God
Evidently, those ancient translators realized that John's words recorded at
John 1:1 did not mean that Jesus was to be identified as Almighty God. The Word was a god, not Almighty God.
But you're still thinking how do we know that it's really not god.
Because my good sir if you actually read through the Bible you would see how impossible it is that Jesus is god since he himself says he isn't!
What the Bible says:
Stephen, filled with the Holy Spirit, gazed into heaven and saw the glory of God, and Jesus standing at God's right hand. 'Look! I can see heaven thrown open,' he said, 'and the Son of man standing at the right hand of God.'"—
Acts 7:55, 56, The New Jerusalem Bible.