Book 1 Closes

Book 1 closes its anatomy of heresy. Here we also have the doctrine of the Cainites, where Irenaeus refers to the mysterious "fictitious Gospel of Judas", where Judas is made into the hero. [Scholars are still debating whether this is the same Gospel of Judas recently discovered/published].

Although there is little way of knowing how accurate Irenaeus is in his description of his opponents, he certainly is exhaustive. He also seems to have read them in their original writings, even going as far as to claim that he compiled a collection of their teachings. His belief is that if one exposes their teaching, than truth will come through.