Hey Robert enjoy the Southern Hemisphere Midsummer Festival !!
I too have been focused lately on analysing Gnostic material, and have recently read books by Jonas and Pagels (on Heracleon) among others.
The experts in this field don't make their hypotheses about chronology explicit. When these are examined the complete reliance is upon heresiological literary mentions in the "Orthodox Church Fathers" which were preserved by the church organisation. Palaeographic datings have recently been expanded to include 4th century.
Yeah that's an interesting discussion.
For example, I wonder to what extent the late Gnostic hatred of the cosmos emerged from a rejection of the constructed theology of the world, rather than a rejection of nature?
I'd question whether the Gnostics "hated" the cosmos. I suspect the primary evidence used for this assertion is a section heading in Plotinus' Enneads. Check it out. I'd point out that the best guide to the whole Gnostic dialogue is Platonism. The signature of Platonism is plainly evident in some of the texts within the Nag Hammadi Codices. Platonism was also very important for the Christians in the 4th century.
- It should not be necessary to remind Hellenists that "Know Thyself"
passed for the supreme word of wisdom in the classical period,
or that Heraclitus revealed his method in the words "I searched myself".
"The teachings of Plato", says Justin, "are not alien to those of Christ;
and the same is true of the Stoics." "Heraclitus and Socrates lived in'
accordance to the divine Logos" and should be recognised as Christians.
Clement says that Plato wrote "by the inspiration of God".
Augustine, much later, finds that "only a few words and phrases" need
to be changed to bring Platonism into complete accord with Christianity.
The ethics of contemporary paganism, as Harnack shows,with special reference
to Porphyry,are almost identical with those of the Christians of his day.
The Legacy of Greece - Oxford University Press (1921)
RELIGION
by W. R. Inge, Dean of St.Pauls
p.26
You made the comment that this hatred was "a rejection of the constructed theology of the world, rather than a rejection of nature". I think this is closer to the point. When I use the term "gnostics" here (or anywhere else) I am referring to the authors of the Gnostic Gospels and acts. The authors of the texts within the NHC. The gnostics were obviously writing literature which rejected the historical Jesus. As the OP and development demonstrates in the Gnostic texts the appearance of a "Post Resurrection Jesus" dominates. A post resurrection Jesus cannot be an historical figure by definition. The genre of the gnostic "Acts" has been described as "Hellenistic romance." These are fiction stories.
These authors did not reject nature, and they reserved a special place for "asceticism". Their gripe was with the canonical books. That much is for sure.
To what extent can the esoteric intent within the Gospels themselves, and within Paul's Epistles and the Revelation, be described as Gnostic?
This is an interesting separate issue. I'd have to give it some thought. However I am more interested in examining the big picture in which we have two opposing parties and their literary tensions exposed. The orthodox canonical book followers and the heretical non canonical book followers.
The heretical non canonical book followers and preservers (which the orthodox followers claimed included the Manichaeans) preserved books containing really weird stories not about the "Historical Life of Jesus" but about the "Mythical Life of the Post Resurrection Jesus".
I think that it is reasonable on this basis to accept these Gnostic texts as evidence of a group of influential Mythicists in antiquity who denied the historicity of Jesus.
LC