Heresies, like doctrinal formulations, are products of history. They must be understood historically as well as theologically. When doctrinal issues become intertwined with historical ones, advocates of a new understanding have often run afoul of religious authorities.

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.

Why the Church must defend the truth. Our ongoing fascination with alternative Christianities is on display every time a never-before-seen gospel text is revealed, an archaeological discovery about Jesus makes front-page news, or a new work of fiction challenges the very foundations of the church. Now, in a timely corrective to this trend, renowned church historian Alister McGrath examines the history of subversive ideas, overturning common misconceptions that heresy is somehow more spiritual or liberating than traditional dogma. In so doing, he presents a powerful, compassionate orthodoxy that will equip the church to meet the challenge from renewed forms of heresy today.

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.

Examining the dynamic interplay between competing medieval notions of Christian observance, this book traces the escalating confrontations between piety, reform, dissent, and Church authority. It explores how diverse culture and regional settings influence major disputes over scripture, sacraments, and spiritual hierarchies of the Medieval world.