Mary’s genes gave the Holy Spirit-conceived child his humanity. Consider a simple illustration. When we take a trip, a suitcase carries all we’ll need for the experience. O.K., a suitcase for a man. Two or three for a woman.
The point is, all that Mary contributed to Christ’s birth were the genes in her suitcase—the humanity that made him entirely human—with every characteristic of a male. While the Holy Spirit gave him the CHARACTER of GOD Almighty, GOD the Eternally-begotten SON, possessing the NATURE of God as the PERSON of God.
Which is why we, as redeemed mortals, worship Jesus, the God-Man, fully God, fully human. For... only as a human could he identify with mortals; and only as DEITY could he qualify as God’s Perfect Sacrifice. Which is why Mary could never have any role in Redemption. While fully human, and identifying with us, she had the need of forgiveness and therefore, lacking deity, couldn’t add anything to Christ’s complete sacrifice for sin.
The visit of the Wise Men, recorded in Matthew 2:9-12, established the model followed faithfully in Christ’s life: he alone important, noticed, followed, obeyed, worshipped! They saw the child and his mother...but “bowed down and worshiped him.” Then opened “their treasures and presented him with gifts of gold and of incense and myrrh”. The perfect chance for God to exalt Mary’s place in her child’s life. Which God refused to do because she had none.
On at least three occasions recorded in the Gospels, Mary proved her human inadequacy vis á vis Christ’s Deity. In Luke 2:41ff she and Joseph had to search for 12 year old Jesus. They didn’t know he would be in the Temple. She had no better understanding of his nature, his time and his glory at Cana at age 30, John 2:1ff. She wanted to determine how he would express himself—and he pointedly rejected her interference. She and her children learned nothing more of Christ’s authority when two years after he had been preaching, they tried to interrupt his ministry and “take him home” Mark 3:31-35. The Lord’s response detonated smoking rebuke in their faces. End Part IV