David G. Hunter 
Marriage, Celibacy, and Heresy in Ancient Christianity [PDF ebook] 
The Jovinianist Controversy

Marriage, Celibacy, and Heresy in Ancient Christianity is the first major study in English of the 'heretic’ Jovinian and the Jovinianist controversy. David G. Hunter examines early Christian views on marriage and celibacy in the first three centuries and the development of an anti-heretical tradition. He provides a thorough analysis of the responses of Jovinian’s main opponents, including Pope Siricius, Ambrose, Jerome, Pelagius, and Augustine. In thecourse of his discussion Hunter sheds new light on the origins of Christian asceticism, the rise of clerical celibacy, the development of Marian doctrine, and the formation of 'orthodoxy’ and 'heresy’ in early Christianity.