Christ’s birth changed the entire course of history. We even separate history according to Jesus’ birth (B.C. to A.D.)! Jesus changed the world by entering history as the “Word made flesh,” and He can change our lives as well.
The history-defining event of Jesus' birth was announced first to a group of shepherds - men who were part of a class of people known as "sinners" because their job kept them unclean and they weren't able to be part of the religious life of Israel. But "sinners" are exactly who Jesus came to save! The news of our Savior, Christ the Lord, is good news that brings great joy to ALL people!
As we begin the season of Advent, we need to back up a few steps from Christmas to see the bigger picture of why Christmas had to happen in the first place. It's the fulfillment of a promise made at the very beginning of a redeemer who would save his people from their sins.