First Reading
ISAIAH 7:10-14; 8:10

7 10Again the LORD spoke to Ahaz, 11"Ask a sign of the LORD your God; let it be deep as Sheol or high as heaven." 12But Ahaz said, "I will not ask, and I will not put the LORD to the test." 13And he said, "Hear then, O house of David! Is it too little for you to weary men, that you weary my God also? 14Therefore the Lord himself will give you a sign. Behold, a young woman shall conceive and bear a son, and shall call his name Imman'u-el. 8 10Take counsel together, but it will come to nought; speak a word, but it will not stand, for God is with us.

Responsorial Psalm
LUKE 1:46-55

46And Mary said, "My soul magnifies the Lord, 47and my spirit rejoices in God my Savior, 48for he has regarded the low estate of his handmaiden. For behold, henceforth all generations will call me blessed; 49for he who is mighty has done great things for me, and holy is his name. 50And his mercy is on those who fear him from generation to generation. 51He has shown strength with his arm, he has scattered the proud in the imagination of their hearts, 52he has put down the mighty from their thrones, and exalted those of low degree; 53he has filled the hungry with good things, and the rich he has sent empty away. 54He has helped his servant Israel, in remembrance of his mercy, 55as he spoke to our fathers, to Abraham and to his posterity for ever."

Gospel
LUKE 1:26-38

26In the sixth month the angel Gabriel was sent from God to a city of Galilee named Nazareth, 27to a virgin betrothed to a man whose name was Joseph, of the house of David; and the virgin's name was Mary. 28And he came to her and said, "Hail, full of grace, the Lord is with you!" 29But she was greatly troubled at the saying, and considered in her mind what sort of greeting this might be. 30And the angel said to her, "Do not be afraid, Mary, for you have found favor with God. 31And behold, you will conceive in your womb and bear a son, and you shall call his name Jesus. 32He will be great, and will be called the Son of the Most High; and the Lord God will give to him the throne of his father David, 33and he will reign over the house of Jacob for ever; and of his kingdom there will be no end." 34And Mary said to the angel, "How shall this be, since I have no husband?" 35And the angel said to her, "The Holy Spirit will come upon you, and the power of the Most High will overshadow you; therefore the child to be born will be called holy, the Son of God. 36And behold, your kinswoman Elizabeth in her old age has also conceived a son; and this is the sixth month with her who was called barren. 37For with God nothing will be impossible." 38And Mary said, "Behold, I am the handmaid of the Lord; let it be to me according to your word." And the angel departed from her.