God is beyond time, but every person is firmly planted in it. History impacts us endlessly, including the ways we understand the church and its teachings. This has been the case since the time of the earliest believers. In History and Heresy, Joseph F. Kelly considers heresies and the historical forces that shaped them. In his customarily engaging style, he demonstrates that historical forces and human beings of particular historical eras play a major role in how both orthodoxy and heresy come into being and how they are understood. Far from reducing orthodoxy and heresy to historical forces, he shows rather that a grasp of the historical context of both is essential in understanding them and especially in determining what might be orthodox or heretical.

This short and accessible book introduces readers to the problems of heresy, schism and dissidence over the last two millennia. The heresies under discussion range from Gnosticism, influential in the early Christian period, right through to modern sects. The idea of a heretic conjures up many images, from the martyrs prepared to die for their beliefs, through to sects with bizarre practices. This book provides a remarkable insight into the fraught history of heresy, showing how the Church came to insist on orthodoxy when threatened by alternative ideals, exploring the social and political conditions under which heretics were created, and how those involved were 'tested' and punished, often by imprisonment and burning. Engaging written, A Brief History of Heresy is enlivened throughout with fascinating examples of individuals and movements. A short, accessible history of heresy. Spans the last two millennia, from the Gnostics through to modern sects. Considers heresy in relation to ecclesial separatism, doctrinal disagreement, church order, and basic metaphysics. Enlivened with intriguing examples of individuals and movements. Written by a leading academic in the field of Religious History.

A lively examination of the heretics who helped Christianity become the world’s most powerful religion. From Arius, a fourth-century Libyan cleric who doubted the very divinity of Christ, to more successful heretics like Martin Luther and John Calvin, this book charts the history of dissent in the Christian Church. As the author traces the Church’s attempts at enforcing orthodoxy, from the days of Constantine to the modern Catholic Church’s lingering conflicts, he argues that heresy—by forcing the Church to continually refine and impose its beliefs—actually helped Christianity to blossom into one of the world’s most formidable religions. Today, all believers owe it to themselves to grapple with the questions raised by heresy. Can you be a Christian without denouncing heretics? Is it possible that new ideas challenging Church doctrine are destined to become as popular as Luther’s once-outrageous suggestions of clerical marriage and a priesthood of all believers? A delightfully readable and deeply learned new history, Heretics overturns our assumptions about the role of heresy in a faith that still shapes the world. “Wright emphasizes the ‘extraordinarily creative role’ that heresy has played in the evolution of Christianity by helping to ‘define, enliven, and complicate’ it in dialectical fashion. Among the world’s great religions, Christianity has been uniquely rich in dissent, Wright argues—especially in its early days, when there was so little agreement among its adherents that one critic compared them to a marsh full of frogs croaking in discord.” —The New Yorker

Some of the most portentous events in medieval history—the Cathar crusade, the persecution and mass burnings of heretics, the papal inquisition—fall between 1000 and 1250, when the Catholic Church confronted the threat of heresy with force. Moore’s narrative focuses on the motives and anxieties of elites who waged war on heresy for political gain.

In Heresy, leading religion expert and church historian Alister McGrath reveals the surprising history of heresy and rival forms of Christianity, arguing that the church must continue to defend what is true about Jesus. He explains that remaining faithful to Jesus’s mission and message is still the mandate of the church despite increasingly popular cries that traditional dogma is outdated and restricts individual freedom.

This concise and balanced survey of heresy and inquisition in the Middle Ages examines the dynamic interplay between competing medieval notions of Christian observance, tracing the escalating confrontations between piety, reform, dissent, and Church authority between 1100 and 1500. Jennifer Kolpacoff Deane explores the diverse regional and cultural settings in which key disputes over scripture, sacraments, and spiritual hierarchies erupted, events increasingly shaped by new ecclesiastical ideas and inquisitorial procedures. Incorporating recent research and debates in the field, her analysis brings to life a compelling issue that profoundly influenced the medieval world.

Heresy is a central concept in the formation of Orthodox Christianity. Where does this notion come from? This book traces the construction of the idea of ‘heresy’ in the rhetoric of ideological disagreements in Second Temple Jewish and early Christian texts and in the development of the polemical rhetoric against ‘heretics,’ called heresiology. Here, author Robert Royalty argues, one finds the origin of what comes to be labelled ‘heresy’ in the second century. In other words, there was such as thing as ‘heresy’ in ancient Jewish and Christian discourse before it was called ‘heresy.’ And by the end of the first century, the notion of heresy was integral to the political positioning of the early orthodox Christian party within the Roman Empire and the range of other Christian communities. This book is an original contribution to the field of Early Christian studies. Recent treatments of the origins of heresy and Christian identity have focused on the second century rather than on the earlier texts including the New Testament. The book further makes a methodological contribution by blurring the line between New Testament Studies and Early Christian studies, employing ideological and post-colonial critical methods.