They become ONE...Jesus never said he and the Father are ONE GOD..He said " He and the Father are ONE"<quoted text> Their are many gods but one true God. Explain how an Almighty God and a Mighty God become ONE true God?
Meaning they are in unity with each other.
You have read the scriptures wrong ..you put God on the end of the sentence when Jesus said ' he and the Father are ONE."
You added on to the word.