The term “mother of God” is not one of the six words in the Bible which convince me the Catholic church has reinvented Mary. Its absence in Scripture is what convinces me. Like the phrase “full of grace,” this term never appears in Scripture–nor does the concept. Instead, the Bible itself refutes it.
The Roman Catholic Church teaches that since Mary was the mother of the son of God, that makes her the mother of God.
Not Biblical. Not logical. Not physically possible. The Bible says that we are flesh (sarx: flesh, body, human nature, materiality) and God is a spirit. (John 4:24 Douay-Rheims Catholic version) It says, “That which is born of the flesh is flesh and that which is born of Spirit is Spirit” (John 3:6 D-R). A human being cannot give birth to deity. As God’s son, Jesus Christ is fully divine. As Mary’s son, Jesus is fully human. Mary’s contribution to the God-human equation was the “human” part of Him.