In fact, it seems that no coherent description is possible, and we are brought up against the limits of what can be thought. ‘The Messiah will come only when he is no longer necessary. He will come only on the day after his arrival; he will come, not on the last day, but on the very last.’ It would seem that the Messiah comes precisely when there is no one there to suffer the destruction of the world as we know it, when there is no one left who can destroy his coming. That Messiah arrives not as an individual, and surely not within any temporal sequence that we take to organise the world of living beings. If he comes on the very last day, but not the last, he comes on a ‘day’ – now hyperfigurative – that is beyond any calendar of days, and beyond chronology itself.
This is Kafka's Messiah, who may not have any connection to the Messiah considered by Benjamin in 'On the Concept of History' and referred to by Butler in Frames of War.