Karl Barth gives beautiful expression to the “already/not yet” eschatological dynamic that pervades and structures the New Testament and Christian existence.
“The war is at an end – even though here and there troops are still shooting, because they have not heard anything yet about the capitulation. The game is won, even though the player can still play a few further moves. Actually he is already mated. The clock has run down, even though the pendulum still swings a few times this way and that. It is in this interim space that we are living: the old is past, behold it has all become new. The Easter message tells us that our enemies, sin, the curse and death, are beaten. Ultimately they can no longer start mischief. They still behave as though the game were not decided, the battle not fought; we must still reckon with them, but fundamentally we must cease to fear them anymore. If you have heard the Easter message, you can no longer run around with a tragic face and lead the humourless existence of a man who has no hope. One thing still holds, and only this one thing is really serious, that Jesus is the Victor. A seriousness that would look back past this, like Lot’s wife, is not Christian seriousness. It may be burning behind – and truly it is burning – but we have to look, not at it, but at the other fact, that we are invited and summoned to take seriously the victory of God’s glory in this man Jesus and to be joyful in Him. Then we may live in thankfulness and not in fear.
Karl Barth, Dogmatics in Outline, p. 123.