The Nativity stories in the Gospels of Matthew and Luke contain the largest discourses between humans and angels in the Bible. The angels told Mary what was going to happen, they supplied Jesus’ name, they brought people to witness the new-born King, they gave a protective warning to Joseph to keep his family safe. Below are the angelic Christmas dialogues:
Luke 1:30 And the angel [Gabriel] said to her, “Do not be afraid, Mary, for you have found favor with God. 31 And behold, you will conceive in your womb and bear a son, and you shall call his name Jesus. 32 He will be great, and will be called the Son of the Most High; and the Lord God will give him the throne of his father David. 33 And he will reign over the house of Jacob forever; and of his kingdom there will be no end.” 34 And Mary said to the angel, “How can this be, since I am a virgin?” 35 And the angel answered her, “The Holy Spirit will come upon you, and the power of the Most High will overshadow you; therefore the Holy One to be born will be called the Son of God. 36 And behold, your relative Elizabeth in her old age has also conceived a son, and this is the sixth month with her who was called barren; 37 for no word of God will be impossible.”
Matthew 1:20... an angel of the Lord appeared to him [Joseph] in a dream, saying, “Joseph, son of David, do not be afraid to take Mary your wife. For that which is conceived in her is from the Holy Spirit. 21 And she will give birth to a son, and you shall call his name Jesus, for he will save his people from their sins.”
Luke 2:8 And in that region there were shepherds living out in the fields, keeping watch over their flock by night. 9 And an angel of the Lord appeared to them, and the glory of the Lord shone around them, and they were filled with fear. 10 Then the angel said to them, “Do not be afraid, for behold, I bring you good news of great joy which will be to all the people. 11 For to you is born this day in the city of David a Savior, who is Christ the Lord. 12 And this will be the sign to you: you will find a babe wrapped in swaddling cloths and lying in a manger.” 13 And suddenly there was with the angel a multitude of the heavenly host praising God and saying, 14 “Glory to God in the highest, and on earth peace among men with whom he is pleased!”
Matthew 2:13 Now when they had departed, behold, an angel of the Lord appeared to Joseph in a dream and said, “Rise, take the child and his mother, and flee to Egypt, and stay there until I tell you; for Herod is about to search for the child, to destroy him.” 14 When he rose, he took the young child and his mother by night and departed for Egypt.
Text excerpted from The Comprehensive New Testament and The Gospels in Perfect Harmony