Even if you did not mean it when you defied God, your words had consequences. If God did not strike you down for your wickedness, you might reach for the dread words more readily next time – or go further, since blasphemy depends on shock value and is therefore liable to runaway inflation. You might find yourself asking in your heart: is there really a God? Even to try out the feel of the words on your tongue was to peer over the edge of a cliff. Perhaps you were only trying to scare yourself, or others, and had no intention of actually leaping off. But you had looked, you had imagined, and felt a thrill that was more than fear. If the time ever came to jump – or if the cliff ever began to crumble beneath you – you would not be entirely unready.
Losing your temper with God might feel good, but it did not achieve very much. A more practical and dangerous target for anger was his self-appointed representatives on earth. The case of Isambardus de Sancto Antonio, in thirteenth-century southern France, ought never to have come to anything. All that had happened was that, when a preacher introduced his sermon by promising to ‘say a few words about God’, Isambardus said audibly, ‘the fewer the better’. If he had apologised to the court, nothing more would have happened. But he refused, and instead launched into a series of tart remarks about how priests invented ceremonies to extort money from the people. Likewise the Montauban peasant who claimed in 1276 that he would not confess his sins to a priest even if he had sex with every woman in the village. He was no more making a theological argument than he was eyeing up his neighbours; he was simply railing against one of the most widely resented pinch points of priestly control over lay people. Another Spaniard was accused before the Inquisition in the late fifteenth century for saying, ‘I swear to God that this hell and paradise is nothing more than a way of frightening us, like people saying to children “the bogeyman will get you”’. This is resentment at being manipulated, not speculation about the fate of the dead.[11]
I do not mean that these incidents were trivial: quite the reverse. Amateur theological speculation was a minority activity in the Middle Ages, but resentment of priests was a sport for all. Historians disagree over how widespread ‘anticlericalism’ was in medieval Europe, but everyday life certainly offered plenty of potential points of friction between priests and common people: from the gathering of tithes, fees and offerings, to the imposition of tedious moral and ritual constraints. Any priest who found himself at odds with an awkward parishioner might naturally fall back on his authority as God’s representative, forcing the parishioner either to give way, or to enlarge his quarrel to include God. A dispute over a few pence or an illicit pat of butter in Lent could very quickly escalate into something much more serious.
In practice, one issue above all tended to trigger these escalations: the medieval clergy’s most visible and most outrageous claim to spiritual authority. In the Mass, every priest presided at a daily miracle, in which bread and wine were wholly but undetectably transformed into the literal substance of Christ’s body and blood. The reason the Western Church formally defined this doctrine of transubstantiation in 1215 was that dissident groups were questioning it. Thereafter the sacrament of unity became a shibboleth, dividing those who could and could not embrace this hard teaching. Transubstantiation made sense in Aristotelian philosophical terms, but it was always counterintuitive, and only became more so as philosophy moved on during the later Middle Ages. Hence the procession of medieval miracle stories in which unbelievers suddenly saw the ritual at the altar as it ‘truly’ was: a broken human body, a blood-filled chalice. In the stories, these visions were typically judgements on unbelief rather than rewards for faith. In the earliest and best known of them, Pope Gregory the Great prayed for the gory truth to be shown to a woman who laughed at the thought that bread she herself had baked could be Christ’s body. Invariably, these doubters begged for the dreadful vision to be hidden from them again.
The Church, in other words, did not downplay the difficulty of believing in the sacrament. It revelled in it. The reason Christ’s body looked, felt and tasted like bread, according to the encyclopaedic medieval theologian Peter Lombard, was ‘so that faith may obtain its merit’. Believing was meant to be hard. Stories of bloody visions did not settle doubts so much as tease hearers with a certainty they could not have, rubbing their noses in the incongruous and glorious truth that their incredulous hearts were commanded to embrace.[12] Denials of this miracle were not unthinkable: they were necessary. Every Doubting Thomas story needs a sceptic.
Doubting transubstantiation was hardly exclusive to atheists. It was a point on which Jews, Muslims and Christian dissidents of various kinds could all agree. The Inquisition’s chief purpose was to hunt for heretics, not unbelievers. Yet their dragnets did not discriminate. Some of their catch were not members of any organised or coherent heretical group, but seemed to represent distinctive, sceptical traditions – or simply to be speaking for themselves. When the bishop of Worcester interrogated a heresy suspect named Thomas Semer in 1448, for example, he was looking for so-called Lollards, members of an English sect who disparaged priests’ status and traditional ceremonies. It quickly became clear, however, that Semer was something different. He not only denied transubstantiation, as the Lollards did, but dismissed the Mass entirely as an empty ritual. He rejected the Bible – which Lollards venerated – as a cynical tool of social control: ‘a set of prescriptions for human behaviour of human devising to keep the peace’. He claimed that Jesus Christ was simply the natural son of Mary and Joseph. At a second interrogation, Semer claimed that paganism was better than Christianity, and that everyday life proved that the devil was stronger than God. Unlike most Lollards, he persisted in his denials until he was executed by burning.[13] What we cannot know is to what extent this kind of scepticism was an ever-present feature of medieval religion’s sea floor, only stirred up by trawling inquisitors; and to what extent it specifically flourished in those corners of the ocean which were filled with heretical variety and therefore attracted the inquisitors’ attention.
Another of Semer’s shocking denials provides an important clue: he rejected any notion of the soul, of Heaven or of Hell. Wherever we find serious unbelief in medieval or early modern Europe, we find this ‘mortalist’ claim – that dead means dead, end of story. Mortalism is entirely compatible with belief in a God, but it was more than just an attack on a specific Christian (and Jewish, and Muslim)[14] doctrine. Medieval and early modern Christianity was intensely focused on salvation, the last judgement and the state of the dead. Strip that out, and while you might still have a rather abstract God, you have precious little religion. In theory, mortalism is not atheism. In practice, it might as well be.
So we find, for example, Jacopo Fiammenghi, an elderly Italian monk whose decades of debauchery, fraud and intimidation finally caught up with him in 1299. Witnesses accused him of saying that ‘there was not another world, neither heaven nor hell, but only this world’. When asked about his soul, anima, he replied, ‘a peach has an anima’ – the same word meant the fruit’s stone. An Englishman named Thomas Tailour confessed in 1491 to believing ‘that when a man or woman dieth in body, then [he] also dieth in soul; for as the light of a candle is put out … so the soul is quenched by the death of the body’.[15] A slightly later preacher’s anecdote picked up the same vivid image. In this story, a believer and an ‘atheist’ fall to arguing over the nature of the soul:
The Atheist said: I will show you what it is. So he caused a candle to be lighted and brought to the table; he blew it out, and said: your soul is no more than the flame of that candle … It is blown out, and so shall it be with your soul when you die.
Medieval churchmen certainly believed that mortalism was enough of a problem to need regular denunciation.[16]
So we have anger with God, hatred for priests, rejection of transubstantiation, scepticism about life after death. What does it all add up to? Medieval inquisitors, who liked their heresies neatly classified, had a ready label to hand: Epicureanism. The ancient philosopher Epicurus, whose name is now associated