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Original Sins: A History of Sex and Christianity, with Diarmaid MacCulloch

Academic, author, broadcaster and ordained deacon Diarmaid MacCulloch is Emeritus Professor of the History of the Church at Oxford University, and Fellow of St Cross College and of Campion Hall. His latest book is Lower than the Angels: A History of Sex and Christianity, which explores how Christian

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Executive Summary: Dermid McCulloch argues that Christianity’s attitudes to sex, marriage, divorce, celibacy, contraception, and same-sex relationships have never been fixed or uniform. Through a 3,000-year lens spanning Judaism, classical antiquity, medieval reforms, the Reformation, and modernity, he shows how doctrine was shaped by social pressures, translation issues, gendered power, and cultural exchange across East and West.

Main Topics: Christianity’s long and global history of sex (Priority: 5/5): McCulloch explains why the book uses a 3,000-year frame, beginning with Greek, Roman, and Jewish antecedents and tracing both Western and Eastern Christian developments. Marriage as secondary in early Christianity (Priority: 5/5): He argues that early Christianity privileged celibacy and virginity over marriage, and that church weddings became normative only much later in different regions. Bible, translation, and sexual meaning (Priority: 5/5): The discussion stresses that the Bible is a library of diverse voices, not a single message, and that key sexual terms and passages have often been mistranslated or oversimplified. Women, shame, and male clerical control (Priority: 4/5): The transcript highlights enduring patterns of menstrual exclusion, female impurity, and male-dominated interpretation that shaped women’s place in Christian institutions. Divorce, monogamy, and competing Christian traditions (Priority: 5/5): McCulloch contrasts Jesus’ teachings, later New Testament editing, and the divergent practices of Catholic, Protestant, and Orthodox traditions regarding divorce and remarriage. The Reformation, celibacy, and women’s agency (Priority: 4/5): The Reformation rejected compulsory clerical celibacy, dissolved monasteries, and reduced some female institutions, while briefly expanding literacy and scriptural access. Modern change: contraception, choice, and identity (Priority: 4/5): Technological and social change, especially contraception and consumer choice, weakened church authority and opened space for new identities and moral autonomy.

Key Arguments: Christianity’s sexual ethics cannot be understood from the New Testament alone; they must be read against Jewish, Greek, Roman, and wider world religious contexts. Early Christianity did not place marriage at the center of religious life; celibacy and virginity were often treated as superior spiritual ideals. Church weddings were a late development: in the East they emerged partly to prevent Christians from converting to Islam; in the West they only became standard in the 12th century. The Bible is not a single coherent authority on sex; different texts and communities offer conflicting views, especially on purity, impurity, and the body. Pauline and later biblical references to same-sex acts are not straightforward condemnations of modern homosexuality, because the ancient social practice described was different from modern same-sex identity. Women’s bodies were historically interpreted through male anxiety and shame, producing long-lived exclusions around menstruation, shrines, and Eucharistic participation. The Western church uniquely linked priesthood to celibacy, turning a discipline into an identity marker for clergy with lasting consequences. The Reformation broke with compulsory clerical celibacy and revived divorce in Protestant settings, but it also reasserted male dominance after the initial upheaval. Contraception forced churches to confront external technological change; Anglican and Catholic responses diverged sharply in the 20th century. Modern traditionalist claims about sex and marriage often ignore the historical complexity and inconsistency of Christian practice. Historical knowledge can reduce fear and dogmatism by exposing how contingent Christian sexual norms have always been.

Data Points: Historical span: 3,000 years - McCulloch frames the history of sex in Christianity as extending beyond Christianity itself into Greek and Jewish antecedents. Early church wedding adoption in the East: 7th century - Eastern churches in Iran/Syria required church weddings partly to prevent conversion to Islam. Western church weddings becoming standard: 12th century - In Western Christianity, church weddings only became a major norm in the medieval period. First noticeable menstruation restrictions: 3rd century - Menstruating women were excluded from communion and sacred spaces in some Christian traditions from early centuries onward. Female exclusion at Durham: about 400 years - Women were kept from part of Durham Cathedral tied to St. Cuthbert’s shrine for centuries. Same-sex term in Pauline text: arsenokoitai - A rare Greek word in a vice list, often mistranslated in modern Bibles as 'homosexuals'. Paul’s letters after Jesus: 10–20 years - McCulloch notes Paul modified Jesus’ no-divorce teaching within a generation or two. Matthew’s Gospel after Jesus: about 60 years - Matthew adds an exception for adultery to Jesus’ divorce prohibition. End of compulsory clerical celibacy in the West: end of the 11th century - The Latin church broadly required priests to be celibate by this point. Luther’s marriage: Friar Luther married nun Katharina von Bora - Used as evidence that Protestantism rejected compulsory celibacy. Anglican bishops’ contraception stance: 1908 then 1930 - The bishops condemned contraception in 1908 and reversed course by 1930. Roman Catholic contraception ban reaffirmed: 1930 and later 1960s - Catholic teaching remained opposed even as lay practice diverged.

Pivotal Quotes: "The Bible is not a book. It is a library of books with a cacophony of voices within them." — Dermid McCulloch: He explains why Christian sexual ethics cannot be reduced to a single scriptural message. "Marriage was a second best." — Dermid McCulloch: He describes the early church’s preference for celibacy and virginity over marriage. "Knowledge is like medicine, it's medicine for the soul, it's medicine for the mind." — Dermid McCulloch: He closes by arguing that historical understanding can cure fear and simplistic traditionalism.

Implications: The discussion suggests Christian sexual ethics are historically contingent, not timeless. For listeners, that means claims about “traditional” doctrine should be tested against the record, especially on marriage, gender, divorce, and sexuality.

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