Creation out of nothing was an awesome event. Imagine what the angelic spirits must have felt when the universe, material reality of which they had never imagined, was brought forth out of nothing by the command of God. The fall was an awful event, shaking the entire creation. The exodus was an amazing display of God's power and love. The giving of the law, the wilderness provisions, the conquering of Canaan, the prosperity of the monarchy — all these acts of God in redemptive history were very great and wonderful. Each one was a very significant bend in the river of redemptive history, bringing it ever and ever closer to the ocean of God's final kingdom.
But we trivialize Christmas, the incarnation, if we treat it as just another bend on the way to the end. It is the end of redemptive history. . . .
With the coming of Christmas, the ocean of the age to come has reached backward up the stream of history to welcome us, to wake us up to what is coming, to lure us on into the deep. Christmas is not another bend in the river of history. It is the end of the river.
Let down your dipper and taste of Jesus Christ, his birth and life and death and resurrection. Taste and see if the age to come has not arrived, if the kingdom has not come upon us. Does it not make your eyes sparkle?
Excertped from Christmas as the End of History (1981), paragraphing added.