Nowhere in Scripture is Mary called 'the mother of God'
The absence of the exact phrase "Mother of God" in Scripture does not refute the doctrine. The terms "Trinity" and "Incarnation" are not found verbatim in Scripture either, yet they describe biblical truths.
Elizabeth was the first person in Scripture to call Mary "the mother of my Lord" (Luke 1:43). Since Jesus is God the Word made flesh (John 1:1, 14), the title "Mother of God" is simply the theological conclusion drawn from what Scripture teaches.
More importantly, my argument was based on four biblical premises:
- The Word is God.
- The Word became flesh.
- Mary conceived and gave birth to Jesus.
- Jesus is God the Word made flesh.
Because if all four are true, then Mary is the mother of the Person Who is God incarnate. Saying "Mother of God" does not mean Mary is the origin of God's divinity, only that the child She conceived and bore is God the Word incarnate.