Where does it say in Scripture that Mary is not the mother of Oz The Great And Powerful? I think she might be. By your logic, if something is NOT in the Bible, it is the truth.
If you have not been following along, there has been an ongoing discussion about whether Mary is the mother of God. I believe it IS in the Bible; others disagree.
When I have asked for an explanation of how Matthew 1 and 2, Luke 1 and 2, and John 1 do not clearly show that Mary is the mother of God, I have not received a response. Would you like to give it a try?
Correction. I have received responses, but they did not give me an understanding of how it could be said that Mary is not the mother of God.