The upper room is the scene where faith is given, and as such is as important to God’s victory as the empty tomb. It would not have been enough that the resurrection should simply have happened; that could have had no more meaning than the birth and death of galaxies. It was an event with meaning, a communicative event, and until the meaning is grasped, the communicative purpose was not accomplished. The resurrection changed the way God’s human creatures could grasp hold of their task of living.
The Christian confession of the resurrection encompasses two great matters: first, that Jesus Christ is the living one who died and is alive for evermore (Rev. 1.18), and, second, that together with him ‘God made us alive’ (Eph. 2.5). These two elements of the confession – its Christology and its soteriology – belong together, but stand in a strict and irreversible sequence.