Against Heresies (Book Review)

Against Heresies by Irenaeus of Lyon

+ This 2nd century book is one of the earliest books of Christian theology and apologetics. The author was taught by Polycarp who was taught by John the Apostle. As a result, it is considered an important work in understanding the Church and its beliefs in its earliest days. It is also arguably the best surviving work that describes Gnosticism, from a contemporary.