The Holy Spirit is clear in Scripture in calling Mary *the mother of Jesus*.
The Holy Spirit is also clear in Scripture in calling the Son of Mary *Jesus*. In fact, He is called Jesus 12 times in the chapters you cite, John 2 and Acts 1.
And just as Mary is never called “the mother of God,” Jesus is never called “God.”
But we know that He is God. We also know that He is the son of Mary. You do agree that the son of Mary is God, don’t you?
I disagree. Hebrews 1:8 calls Jesus God. In John 8:58, Jesus called himself God, by saying before Abraham was, I AM. That the Jews understood exactly what He was claiming, is evidenced by their response. They wanted to kill Him then, and would succeed in killing Him later, for that very claim.