The humble man, says St Thomas, is amazed when any one speaks well of him, and there is nothing that astonishes him more than to hear himself praised. Thus the Blessed Virgin, when she heard from the Archangel Gabriel that she was to become the Mother Of God, had such a lowly opinion of herself that she marveled greatly that she should be exalted to such an eminent dignity…thus, to Mary’s saying, ‘How shall this be?’ the angel brings forward a proof, not to take away her belief but rather to dispel her wonder.” –”Humility of Heart” by Capuchin Gaetano (Cajetan) Maria da Bergamo

And in the sixth month, the angel Gabriel was sent from God into a city of Galilee, called Nazareth, To a virgin espoused to a man whose name was Joseph, of the house of David; and the virgin’s name was Mary. And the angel being come in, said unto her: Hail, full of grace, the Lord is with thee: blessed art thou among women. Who having heard, was troubled at his saying, and thought with herself what manner of salutation this should be. And the angel said to her: Fear not, Mary, for thou hast found grace with God.  –Gospel of Luke Chapter 1