O Come, O Come, Emmanuel, by Selah with scenes from The Nativity Story

The Nativity Story (used for this video - not the best visual quality) gives us the context of a Jewish nation in the midst of oppression. Historians tell us the following:
Hebrew identity was maintained through a deep spiritual conviction that Yahweh had chosen them to play a unique role in the history of the world. In particular, the Jewish people had come to expect a Messiah who, they believed, would enable them to fulfill this divine mission. There were differing understandings of the mission and role of the Messiah ranging from the establishment of a Jewish political kingdom here on earth to the idea of a heavenly kingdom at the end of the world.

Religion and politics were deeply intertwined in Hebrew faith and self-understanding. By the time of Jesus' birth, the Romans had established a two-tiered system of government consisting of Roman overseers and Jewish leaders who exercised control in the name of Rome. This was the system of power in which the family of Herod the Great grew to prominence.

Although half-Jews, the Herodian family was detested by the Jewish people for its tyrannical rule and also because of its key role in selling out the Jewish heritage to a foreign power. One of Herod's sons, Archelaus, was so brutal in his exercise of power in Jerusalem, that Rome replaced him with one of its own governors, Pontius Pilate, who was to play a significant role in the crucifixion of Jesus.

Another of the sons, Herod Antipas, was responsible for the beheading of John the Baptist. It was the same Antipas who is accredited with the mocking of Jesus at his pre-crucifixion trial.

Lyrics:

Oh come, O come, Emmanuel

And ransom captive Israel

That mourns in lonely exile here

Until the Son of God appear

Rejoice, Rejoice!
Emmanuel shall come to thee, Oh Israel!

Oh come, Thou Dayspring, come and cheer
Thy people with Thine advent here;
Disperse the gloomy clouds of night
And death's dark shadows put to flight

Rejoice, Rejoice!
Emmanuel shall come to thee, Oh Israel!

Oh come, Thou rod of Jesse, free
Thine own from Satan's tyranny
From depths of hell Thy people save
And give them victory o'er the grave

Rejoice, Rejoice!
Emmanuel shall come to thee, Oh Israel!
Rejoice, Rejoice!
Emmanuel shall come to thee, Oh Israel!

Supporting Scriptures:
4 Old Testament prophesies-

"The Spirit of the Sovereign LORD is on me,
because the LORD has anointed me
to proclaim good news to the poor.
He has sent me to bind up the brokenhearted,
to proclaim freedom for the captives
and release from darkness for the prisoners." Isaiah 61:1

"Therefore the Lord himself shall give you a sign; Behold, a virgin shall conceive, and bear a son, and shall call his name Immanuel." Isaiah 7:14

"A shoot will come up from the stump of Jesse;
from his roots a Branch will bear fruit.
The Spirit of the Lord will rest on him—
the Spirit of wisdom and of understanding,
the Spirit of counsel and of power,
the Spirit of knowledge and of the fear of the Lord—...
but with righteousness he will judge the needy,
with justice he will give decisions for the poor of the earth.
He will strike the earth with the rod of his mouth;
with the breath of his lips he will slay the wicked. " Isaiah 11:1-2, 4 (and all of Isaiah 11)

"And thou, child (speaking of John the Baptist, forerunner of Jesus), shalt be called the prophet of the Highest: for thou shalt go before the face of the Lord to prepare his ways;
To give knowledge of salvation unto his people by the remission of their sins,
Through the tender mercy of our God; whereby the Dayspring from on high hath visited us,
To give light to them that sit in darkness and in the shadow of death, to guide our feet into the way of peace." Luke 1: 76-79

New Testament fulfillment-
"All this took place to fulfill what the Lord had said through the prophet: '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 us.' " Matthew 1:23

“And he (Jesus) came to Nazareth, where he had been brought up. And as was his custom, he went to the synagogue on the Sabbath day, and he stood up to read. And the scroll of the prophet Isaiah was given to him. He unrolled the scroll and found the place where it was written,
“The Spirit of the Lord is upon me,
because he has anointed me
to proclaim good news to the poor.
He has sent me to proclaim liberty to the captives
and recovering of sight to the blind,
to set at liberty those who are oppressed,
to proclaim the year of the Lord’s favor.”
And he rolled up the scroll and gave it back to the attendant and sat down. And the eyes of all in the synagogue were fixed on him. And he began said to them, “Today this Scripture has been fulfilled in your hearing.” Luke 4: 16-21