The people who walked in darkness
have seen a great light;
Upon those who lived in a land of gloom
a light has shone.

For a child is born to us, a son is given to us;
upon his shoulder dominion rests.
They name him Wonder-Counselor, God-Hero,
Father-Forever, Prince of Peace.

His dominion is vast
and forever peaceful,
Upon David’s throne, and over his kingdom,
which he confirms and sustains
By judgment and justice,
both now and forever.
The zeal of the LORD of hosts will do this!
-Isaiah 9:1,5-6

Happy Advent!!
Isn't it? It's one of my favorites. Easy to understand why it's been sung generation after generation.