In days to come the mountain of the Lord’s house shall be established as the highest of the mountains, and shall be raised above the hills; all the nations shall stream to it. Many peoples shall come and say, “Come, let us go up to the mountain of the Lord, to the house of Jacob; that he may teach us his ways and that we may walk in his paths.” For out of Zion shall go forth instruction, and the word of the Lord from Jerusalem. He shall judge between the nations, and shall arbitrate for many peoples; they shall beat their swords into plowshares, and their spears into pruning hooks; nation shall not lift up sword against nation, neither shall they learn war any more. O house of Jacob, come, let us walk in the light of the Lord!
This passage from Isaiah speaks of our hope for a future in which God will put an end to war and death, and invite us into His house. Christmas represents the fulfillment of that hope: the birth of Jesus means that we now have a way to come home to the “mountain of the Lord’s House.” Though the instruments of war (i.e. sword, spear) are still present, Christ has already won final victory over oppression and death (the outcomes of war). Death is no longer the end of our story; even now, Christ offers us eternal life!