‘So of all things Christianity isn’t supposed to be about gathering up the good people (shiny! happy! squeaky clean!) and excluding the bad people (frightening! alien! repulsive!) for the very simple reason that there aren’t any good people. Not that can securely be designated as such. It can’t be circling the wagons of virtue out in the suburbs and keeping the inner city at bay. This, I realise, goes flat contrary to the present predominant image of it as something existing in prissy, fastidious little enclaves, far from life’s messier zones and inclined to get all “judgemental” about them. Again, of course there are Christians like that: see under HPfFfU. The religion certainly can slip into being a club or a cosy affinity group or a wall against the world. But it isn’t supposed to be. What it’s supposed to be is a league of the guilty. Not all guilty of the same things, or in the same way, or to the same degree, but enough for us to recognize each other.’
Francis Spufford, Unapologetic, p.47.