This great title may be fitly connected with the Maternity of Mary, that is, with the coming upon her of the Holy Ghost at Nazareth after the Angel Gabriel's annunciation to her, and with the consequent birth of our Lord at Bethlehem. She, as the Mother of our Lord, comes nearer to Him than any angel; nearer even than the Seraphim who surround Him, and cry continually, "Holy, Holy, Holy."
The two Archangels who have a special office in the Gospel are Saint Michael and Saint Gabriel - and they both of them are associated in the history of the Incarnation with Mary: Saint Gabriel, when the Holy Ghost came down upon her; and Saint Michael, when the Divine Child was born.
Saint Gabriel hailed her as "Full of grace," and as "Blessed among women," and announced to her that the Holy Ghost would come down upon her, and that she would bear a Son who would be the Son of the Highest.
Of Saint Michael's ministry to her, on the birth of that Divine Son, we learn in the Apocalypse, written by the Apostle Saint John. We know our Lord came to set up the Kingdom of Heaven among men; and hardly was He born when He was assaulted by the powers of the world who wished to destroy Him. Herod sought to take His life, but he was defeated by Saint Joseph's carrying His Mother and Him off into Egypt. But Saint John in the Apocalypse tells us that Michael and his angels were the real guardians of Mother and Child, then and on other occasions.
First, Saint John saw in vision "a great sign in heaven" (meaning by "heaven" the Church, or Kingdom of God), "a woman clothed with the sun, and with the moon under her feet, and on her head a crown of twelve stars"; and when she was about to be delivered of her Child there appeared "a great red dragon," that is, the evil spirit, ready "to devour her son" when He should be born. The Son was preserved by His own Divine power, but next the evil spirit persecuted her; Saint Michael, however, and his angels came to the rescue and prevailed against him.
"There was a great battle," says the sacred writer; "Michael and his Angels fought with the dragon, and the dragon fought and his angels; and that great dragon was cast out, the old serpent, who is called the devil." Now, as then, the Blessed Mother of God has hosts of angels who do her service; and she is their Queen.
- taken from Meditations for the Month of May, by Blessed John Henry Newman