“Judas took the morsel and left at once. And it was night.” Night because then began the “hour of darkness”, of Christ's betrayal. Night, because that was when one day ended and another began (“evening came, and morning followed”), and that day began the eternal day of our salvation. Night, because that was when weddings were held, and this was the new Passover; the wedding feast of the Lamb. “Now is the Son of Man glorified, and God is glorified in him.” All of those meanings are there – but for now, the Gospel focuses on the first one. On Judas' betrayal, which plays out almost as soon as Christ speaks of it – it is something over and done with as soon as possible – and on Peter's betrayal.
There will always be those who, like Judas, turn away from their faith and the God they once professed, and despair. But there will also the rest of us who, like Peter, are stricken by our betrayal and come again to God. There are few moments in Scripture more bitter than this one: “And Christ turned and looked at him.” Nothing is said and nothing needs to be. That gaze has rested on all of us at one point or another; we who call ourselves Catholics can scarcely have avoided it. As with the first Vicar of Christ, so with all of us – or, if not, what has this past month been about?