26 And in the sixth month, the angel Gabriel was sent from God into a city of Galilee, called Nazareth, 27 To a virgin espoused to a man whose name was Joseph, of the house of David; and the virgin’s name was Mary.
Gregory: To the virgin Mary was sent, not any one of the angels, but the archangel Gabriel; for upon this service it was meet that the highest angel should come, as being the bearer of the highest of all tidings. He is therefore marked by a particular name, to signify what was his effectual part in the work. For Gabriel is interpreted, “the strength of God.” By the strength of God then was He to be announced Who was coming as the God of strength, and mighty in battle, to put down the powers of the air.
Bede: It was as a fit beginning for man’s restoration, that an angel should be sent down from God to consecrate a virgin by a divine birth, for the first cause of man’s perdition was the Devil sending a serpent to deceive a woman by the spirit of pride.
Ambrose: Scripture has rightly mentioned that she was espoused, as well as a virgin, a virgin, that she might appear free from all connection with man; espoused, that she might not be branded with the disgrace of sullied virginity, whose swelling womb seemed to bear evident marks of her corruption. But the Lord had rather that men should cast a doubt upon His birth than upon His mother’s purity. He knew how tender is a virgin’s modesty, and how easily assailed the reputation of her chastity, nor did He think the credit of His birth was to be built up by His mother’s wrongs. It follows therefore, that the holy Mary’s virginity was of as untainted purity as it was also of unblemished reputation. . . . And how could He Himself say, I came not to abolish the law, but to fulfill it, if He should seem to have had his beginning from a violation of the law, for the issue of an unmarried person is condemned by the law?
Scripture from the Douay-Rheims Bible. Commentary from St. Thomas Aquinas, Catena Aurea, Vol. III (London: Rivington, 1843).