When the preacher speaks of matters that concern perfection, it leaves him cold; when he tells stories of those who have stood out for their zeal for righteousness, his mind begins to wander. If a sermon starts off on the subject of continence, his head begins to nod; if it goes on to speak of sanctity, he falls asleep. But if the preacher speaks about the forgiveness of sins, then your humble Christian wakes up. This is talk about his own condition; he knows it from the tone. His heart rejoices; he opens his mouth; he waves his hands; he heaps praise on the sermon: for this is on a theme that concerns him.
-Jacob of Sarug, late 500s, quoted by Peter Brown, ‘The Decline of the Empire of God’, in Last Things: Death and the Apocalypse in the Middle Ages, ed. Caroline Walker Bynum and Paul Freedman, p. 41.