George T. Zervos presents the first in a two-volume critical investigation of one of the earliest and most important of the New Testament Apocrypha, the Protevangelium of James, also known as the Infancy Gospel of James. Zervos challenges the prevailing view that the ProtJas is a 2nd century unitary document; finding it instead to be the product of an ongoing redactional process in which a 1st century CE heretical text was progressively conformed to the orthodox Christian doctrine of the time.