The announcement of the birth of Christ came as a sunburst of joy to a world where grief and pain are known to all and joy comes rarely and never tarries long.
The joy the angel brought to the awe-struck shepherds was not to be a disembodied wisp of religious emotion, swelling and ebbing like the sound of an aeolian harp in the rising and falling of the wind. Rather it was and is a state of lasting gladness resulting from tidings that there was born in the city of David a Savior which is Christ the Lord. It was an overflowing sense of well-being that had every right to be there.
The birth of Christ told the world something. That He should come to be born of a woman, to make Himself of no reputation and, being found in fashion as a man, to humble Himself even to death on a cross–this is a fact so meaningful, so eloquent as to elude even the power of a David or an Isaiah fully to celebrate. His coming, I repeat, told the world something; it declared something, established something. What was it?
A. W. Tozer Sermon: He Became Poor So That We Might Become Rich