The kind of time we have in this passing world is the time of an existence that crumbles away into the dust, time that runs backward into nothingness. Hence the kind of historical happening we have in this world is happening that decays and to that extent is illusory, running away into the darkness and forgetfulness of the past. As happening within this kind of time, and as event within this kind of history, the resurrection, by being what it is, resists and overcomes corruption and decay, and is therefore a new kind of historical happening which instead of tumbling down into the grave and oblivion rises out of the death of what is past into continuing being and reality. This is temporal happening that runs not backwards but forwards, and overcomes all illusion and privation or loss of being. This is fully real historical happening, so real that it remains happening and does not slip away from us, but keeps pace with us and, as we tumble down in decay and lapse into death and the dust of past history, outruns us and even comes to meet us out of the future. That is how we are to think of the risen Jesus Christ. He is not dead but alive, more real than any of us. Hence he does not need to be made real for us, because he does not decay or become fixed in the past. He lives on in the present as real live continuous happening, encountering us here and now in the present and waiting for us in the future. (Atonement, 246, emphasis his).
This is the kind of thing I am just not able to get across to the non-believer: the totally radical newness of God's act in Jesus Christ which makes all of our attempts to measure the likelihood or evidence for God's existence totally irrelevant. Jesus is risen! He is alive here and now and active among us. This cannot be deduced from other realities because it is God's new creation, transcending all old realities and recreating them according to God's redemption in Jesus. "But why? How do you know?" Why do the blind insist on staying blind?