“Just because the Bible says Jesus is God, does not mean that is all God is.
ok...so now you’re talking about the mystery of the Holy Trinity?
“So saying Mary is the Mother of God, you would be saying Mary is both the Mother of the Son and the Mother of the Father. I can not say that.”
That is not what we are saying...we say it because we agree that Jesus is God.
We do realize she is not the mother of the Holy Spirit - who is God, or the mother of God the Father who is God.
So maybe we are being a bit lazy where we could say...”Mary mother of God, 2nd person of the Holy Trinity.
but that gets wordy, and because we know the disntinction, we say “mother of God” for short.
Why not just leave it as Mother of Jesus or Mother of Lord?