We will require the chapter and verse of where Gabriel said what you claim.
Still waiting.
[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. [28] And the angel being come in, said unto her: Hail, full of grace, the Lord is with thee: blessed art thou among women. [29] Who having heard, was troubled at his saying, and thought with herself what manner of salutation this should be. [30] And the angel said to her: Fear not, Mary, for thou hast found grace with God...
...[41] And it came to pass, that when Elizabeth heard the salutation of Mary, the infant leaped in her womb. And Elizabeth was filled with the Holy Ghost: [42] And she cried out with a loud voice, and said: Blessed art thou among women, and blessed is the fruit of thy womb. [43] And whence is this to me, that the mother of my Lord should come to me? [44] For behold as soon as the voice of thy salutation sounded in my ears, the infant in my womb leaped for joy. [45] And blessed art thou that hast believed, because those things shall be accomplished that were spoken to thee by the Lord.
[46] And Mary said: My soul doth magnify the Lord. [47] And my spirit hath rejoiced in God my Saviour. [48] Because he hath regarded the humility of his handmaid; for behold from henceforth all generations shall call me blessed. [49] Because he that is mighty, hath done great things to me; and holy is his name. [50] And his mercy is from generation unto generations, to them that fear him.
F O O T N O T E in the Douay-Rheims Bible + Challoner Notes Holy Bible:
[48] Shall call me blessed: These words are a prediction of that honour which the church in all ages should pay to the Blessed Virgin. Let Protestants examine whether they are any way concerned in this prophecy.