She is the "Mother Of GOD", as shown in Holy Scripture, and
by reasoning. She is the Mother of Jesus Christ.
Matthew 16:18, "And I
say to thee, thou art Peter, and Upon this rock I will build
MY CHURCH, and the Gates of Hell shall not prevail against it."
Ephesians 1:22-23, "And all things He made subject under
His feet, and Him He gave as head over all the
Church, which indeed is His Body, the completion of
Him who fills all with all."
Colossians 1:18, "Again, he is the head of the body, the Church..."
Romans 12:5, "...so we, the many, are one body in Christ, but severally
members one of another."
Elucidation...
Jesus Christ founded a Church of which
He is the Head and His Body is all of us.
As a mother, she bore Jesus
Christ, just as in Baptism we are born into the Church, John 3:3-7.
As a
mother, she fed Him, just as in the Church we are spiritually fed by the
Sacraments.
John 19:26, "When Jesus, therefore, saw His Mother and the disciple standing by, whom He loved, He said to His Mother,
"Woman, behold, thy Son." Then He said to the disciple, "Behold, thy Mother".
And from that hour the disciple took her into his
home."
Elucidation...
We all know the disciple Jesus referred to as,
"whom He loved", was the Apostle John. Why didn't John use his name here when he
wrote his Gospel instead of the wording that he did use? It is because "the
disciple whom Jesus loved" is all of us. We are all His disciples, and He loves
all of us. It becomes obvious if you reverse it and say, "Then He did not love
His other disciples, only John, or was John the only disciple He
loved?"
Since the Son IS the Church, along with the rest of us, then His
Mother is rightfully,
the Mother of the
Church.