In the beginning was the Word, and the Word was with God, and the Word was God. He was with God in the beginning. Through him all things were made; without him nothing was made that has been made. In him was life, and that life was the light of all mankind. The light shines in the darkness, and the darkness has not overcome it. There was a man sent from God whose name was John. He came as a witness to testify concerning that light, so that through him all might believe. He himself was not the light; he came only as a witness to the light. The true light that gives light to everyone was coming into the world. He was in the world, and though the world was made through him, the world did not recognize him. He came to that which was his own, but his own did not receive him. Yet to all who did receive him, to those who believed in his name, he gave the right to become children of God— children born not of natural descent, nor of human decision or a husband’s will, but born of God. The Word became flesh and made his dwelling among us. We have seen his glory, the glory of the one and only Son, who came from the Father, full of grace and truth. NIV
"Behold, I bring you good tidings of great joy which shall be to all people; for there is born to you this day a Savior, who is Christ the Lord." In these words you clearly see that he is born for us. He does not simply say, Christ is born, but to you he is born, neither does he say, I bring glad tidings, but to you I bring glad tidings of great joy. Furthermore, this joy was not to remain in Christ, but it shall be to all the people.
For to us a child is born, to us a son is given, and the government will be on his shoulders. And he will be called Wonderful Counselor, Mighty God, Everlasting Father, Prince of Peace.
'The Word became flesh' (John 1:14); God became man; the divine Son became a Jew; the Almighty appeared on earth as a helpless human baby, unable to do more than lie and stare and wriggle and make noises, needing to be fed and changed and taught to talk like any other child.
And there was no illusion or deception in this: the babyhood of the Son of God was a reality. The more you think about it, the more staggering it gets. Nothing in fiction is so fantastic as is this truth of the Incarnation.