In addition to the many texts that we have discussed previously, there are other standard texts to which Oneness advocates will appeal in support of their position that God is unipersonal and that the Son merely refers to the humanity of Jesus –he was God the Father manifested in the flesh. I am attempting to touch on a number of those passages here.
John 20:28 – Thomas answered him, “My Lord and my God!”
The statement of Thomas to Jesus is clear and unambiguous – he called Jesus his Lord and his God. The response of Jesus is not to correct Thomas in any way but to affirm that the confession of Thomas is a demonstration of his faith.
The fact of the matter is this is a verse that strongly confirms the deity of Christ but nothing concerning him being the same as the Father in terms of identity unless you being with the presupposition that the God is unipersonal and read into the text that Thomas was declaring the Jesus to be the Father. In his book, The Oneness of God, Bernard properly cites to this verse as evidence of Jesus being God but he does not go so far as to state that this is a statement of Jesus being the Father because it is not such a statement. Nevertheless, oneness advocates look to this verse making the assumption that God is unipersonal and read into the text that notion that Jesus was God the Father.
Again, one would need to bring the presupposition that God is unipersonal to the text to interpret the text in isolation from the rest of scripture to understand the passage as a declaration that Jesus is declared to be the Father by Thomas.