And behold, you will conceive in your womb and bear a son, (2 Sam 7:14, Ps 2:7) and you shall call his name Jesus. He will be great and will be called the Son of the Most High (Is 9:6). And the Lord God will give to him the throne of his father David (2 Sam 7:12), and he will reign over the house of Jacob forever, and of his kingdom there will be no end.” And Mary said to the angel, “How will this be, since I am a virgin?” (Is 7:14) And the angel answered 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.
And his mercy is for those who fear him from generation to generation. He has shown strength with his arm; he has scattered the proud in the thoughts of their hearts; he has brought down the mighty from their thrones and exalted those of humble estate; he has filled the hungry with good things, and the rich he has sent away empty. He has helped his servant Israel, in remembrance of his mercy, as he spoke to our fathers, to Abraham and to his offspring forever. (Gen 12:3)
And Joseph also went up from Galilee, from the town of Nazareth, to Judea, to the city of David, which is called Bethlehem (Micah 5:2), because he was of the house and lineage of David, to be registered with Mary, his betrothed, who was with child. And while they were there, the time came for her to give birth. And she gave birth to her firstborn son and wrapped him in swaddling cloths and laid him in a manger, because there was no place for them in the inn.
Luke 1:31-35,50-51,54-55, 2:4,7