So says St Elizabeth, Luke 1:43.
Mary is the Mother of God, not according to any man-made doctrines, but according to the Holy Spirit (Luke 1:43).
Mary is not Eternally Begotten and is not part of the Holy Trinity as many Protestants think we believe when we proclaim her “Mother of God,” in the voice of St. Elizabeth. And if there is any doubt that Mother of my Lord is referring to Mother of God, Luke 1:45 proves beyond a shadow of a doubt that it is God who is the Mother of my Lord.
Yet, God found favor with her and she is proclaimed “Full of Grace.” Mary was called according to Gods purpose. For He foreknew her and predestined her to be the Mother of God. And we can be certain that He justified her and glorified her. This is why Mary, the Mother of God, can proclaim to us “God My Savior.”
St. Paul tells us in Galatians 1:15 that he was chosen by God before he was born to preach the gospel to the Gentiles. And so was Mary, the Mother of God, chosen before the foundation of the world to be the Mother of God.
In Johns Gospel, 19:26-27 –
26 When Jesus saw his mother and the disciple whom he loved standing beside her, he said to his mother, “Woman, here is your son.” 27 Then he said to the disciple, “Here is your mother.” And from that hour the disciple took her into his own home.
Jesus says “Women, behold your son” is saying “Women, behold your Son – Christ, the Son of God.” Jesus is echoing Luke 1:35 –
35 The angel said to her, “The Holy Spirit will come upon you, and the power of the Most High will overshadow you; therefore the child to be born will be holy; he will be called Son of God.
Mary knows. The Evangelist, is accepting Mary, “THE MOTHER OF GOD.”