βAnd she shall bring forth a son, and thou shalt call his name JESUS: for he shall save his people from their sins. Now all this was done, that it might be fulfilled which was spoken of the Lord by the prophet, saying, Behold, a virgin shall be with child, and shall bring forth a son, and they shall call his name Emmanuel, which being interpreted is, God with usβ (Matthew 1:21-23).
The second verse of the classic Christmas carol highlights todayβs Scripture.
βChrist, by highest heaven adored;
Christ, the everlasting Lord;
Late in time behold him come,
Offspring of the virginβs womb.
Veiled in flesh the Godhead see;
Hail the incarnate Deity,
Pleased as man with man to dwell;
Jesus, our Emmanuel!β
The first time in history that the Bible records angels singing joyfully, it was when they watched the God of the Bible create the heaven and the earth. The book of Job, chapter 38, verse 7, says in retrospect, βWhen the morning stars sang together, and all the sons of God shouted for joy.β Now, some 4,000 years later, in the books of Matthew through John, the angels are singing because God the Son has become a Man, the God-Man.
Without the incarnation, the Word becoming flesh and dwelling among us (John 1:14), the God of the Bible would be distant and cold. He would have no intimate relation to us. There would be no manifestation of the invisible GodheadβFather, Son, and Holy Ghost would just be immaterial Beings. But, the incarnation made Jesus Christ the most unique Person in all of the universe. βFor in him dwelleth all the fulness of the Godhead bodilyβ (Colossians 2:9).
There is no other Being who is both fully God and fully man, total man and yet total God, untainted humanity and undiminished deity. The angels had never seen such a Person. They saw what God was doing and they took great value in it. They certainly did not understand what we know today, but they knew enough to sing and rejoice. source