In the same region there were some shepherds staying out in the fields and keeping watch over their flock by night. And an angel of the Lord suddenly stood before them, and the glory of the Lord shone around them; and they were terribly frightened. But the angel said to them, "Do not be afraid; for behold, I bring you good news of great joy which will be for all the people; for today in the city of David there has been born for you a Savior, who is Christ the Lord. This will be a sign for you: you will find a baby wrapped in cloths and lying in a manger."And suddenly there appeared with the angel a multitude of the heavenly host praising God and saying, "Glory to God in the highest; And on earth peace among men with whom He is pleased."
The birth of Jesus Christ is "good news of great joy. . .for all the people". The Messiah is born to deliver His people from the oppression of sin. But He is not just the Savior of Israel. He is the Savior of all mankind. There is no one who is outside of His grace. There has never been One like Jesus, nor will there ever be again. He is unique. The only Son of God, born to the glory of the Father, yet existing eternally. The Alpha and the Omega. He left His heavenly home and took on flesh to carry out the plan of redemption, reconciling men to God through His shed blood.