Proto-orthodox Christianity or proto-orthodoxy was the early Christian movement that was the precursor of Christian orthodoxy. Older literature often referred to the group as "early Catholic" in the s
Ignatius of Antioch, one of the Apostolic Fathers, was the third Patriarch of Antioch, said to be a student of John the Apostle. En route to his martyrdom in Rome, Ignatius wrote a series of letters which exemplify very early Christian theology, dealing with such topics as modification of the sabbath to Sunday, promotion of the office of bishop, and critique of "Judaizers".
Gnosticism is a collection of different religious and philosophical ideas and systems that fully developed by the mid-second century among sects of early Christianity and other faiths. It is not a sin
Proto-orthodox Christianity
…that was the State church of the Roman Empire during the 4th and 5th centuries. The term "proto-orthodox" was coined by Bentley Layton, a scholar of Gnosticism and a Coptologist at Yale, but is often attributed to New Testament scholar Bart D. Ehrman, who has popularized the term by using it in books for a…
Page from the Gospel of Judas
A lion-faced, serpentine deity found on a Gnostic gem in Bernard de Montfaucon's L'antiquité expliquée et représentée en figures, a depiction of Yaldabaoth
Mandaeans in prayer during baptism
Mandaean Beth Manda (Mashkhanna) in Nasiriyah, southern Iraq, in 2016, a contemporary-style mandi