Readings from the book of Isaiah dominate the Christmas season, and for good reason: Isaiah is an enduring invitation for God’s people to view their present distress through God’s past deliverance and his future promises. Here we find the good news of light for those who dwell in darkness. Here is the promise of justice for those who are oppressed. Here is joy that replaces every sorrow. Here is endless life instead of death. And at the center of it all is a reigning king, a suffering servant, and a hopeful messenger—not three different men, but one glorious Messiah—born his people to deliver, born a child and yet a king, born to reign in us forever, born to set his people free.