A common argument for the Trinity is from John 10:30 where Jesus states:
I and my Father are one.
Now is this a claim to be God himself? If it was, then do we also become equally God as per John 17 when Jesus prays:
21 That they all may be one; as thou, Father, art in me, and I in thee, that they also
may be one in us: that the world may believe that thou hast sent me.
22 And the glory which thou gavest me I have given them; that they may be one,
even as we are one:
23 I in them, and thou in me, that they may be made perfect in one; and that the
world may know that thou hast sent me, and hast loved them, as thou hast loved
me.
Jesus prayed that we(believers) would be made one in them(Father and Son), as they are one. This should make it clear that being one doesn’t mean “one being”. These verses refer to being one in Spirit.
Jesus is the Son of God but not God himself, just as we are to become sons of God through our faith in Jesus. Becoming sons of God does not make us equal to God, but it does make us one with God.
God is not a mystery as some would have you believe. The truth is clear and evident from the Scriptures. Jesus came to bring us to the Father and yet so many try to lead us away.
There is but one God, The Father and one Lord, Jesus Christ.!