The Nag Hammadi library is a collection of early Christian and Gnostic texts discovered near the Upper Egyptian town of Nag Hammadi in 1945.
Thirteen leather-bound papyrus codices buried in a sealed jar were found by a local farmer named Muhammed al-Samman. The writings in these codices comprise 52 mostly Gnostic treatises, but they also include three works belonging to the Corpus Hermeticum and a partial translation/alteration of Plato's Republic. In his introduction to The Nag Hammadi Library in English, James Robinson suggests that these codices may have belonged to a nearby Pachomian monastery and were buried after Saint Athanasius condemned the use of non-canonical books in his Festal Letter of 367 A.D. The discovery of these texts significantly influenced modern scholarship's pursuit and knowledge of early Christianity and Gnosticism.
The contents of the codices were written in the Coptic language. The best-known of these works is probably the Gospel of Thomas, of which the Nag Hammadi codices contain the only complete text. After the discovery, scholars recognized that fragments of these sayings attributed to Jesus appeared in manuscripts discovered at Oxyrhynchus in 1898 (P. Oxy. 1), and matching quotations were recognized in other early Christian sources. The written text of the Gospel of Thomas is dated to the second century by most interpreters, but based on much earlier sources. The buried manuscripts date from the 3rd and 4th centuries.
The Nag Hammadi codices are currently housed in the Coptic Museum in Cairo, Egypt. Wiki reference: 
Christos Essene Templar Gnosticism
Today, Gnosticism generally refers to a set of specific religious doctrines on spirituality that were discovered in 1945 in Nag Hammadi, which were early Christian texts banned from the Canonized Bible. Prior to this discovery, little was known about the Gnostic beliefs and the interpretation of the content that is included in their religious doctrines is still very controversial in academic circles. Gnostics engaged with spiritual Ascension initiation rites in order to create a direct relationship with the eternal source of God, knowing the inner spark of divinity existed within the heart of humanity, in which the inner spark is Consubstantial with the Godhead.
Christos Essene Gnostics walked the path of Gnosis where the spiritual goal was to consciously travel through the dimensional spheres in the Tree of Life in order to separate light from darkness through the process of purification, achieving inner sacred marriage and personification of the ultimate wisdom inherent in Sophianic consciousness. Sophia is the Solar Logos embodied aspect of the Holy Mother, she is the Holy Daughter emanation that lives in the Holy Spirit, the loving wife of Christos along with holding the shared title of the Cosmic Christos-Sophia.
Council of Nicaea and Essene Manuscripts
Roman Emperor Constantine ordered his Christian Bishops to organize the first conference in coordination with the Church of Rome, to enact a council to review these secretly stolen Essene manuscripts. The First Council of Nicea is the first recorded worldwide council of the Christian Church in 325AD, which took place in Turkey and was presided over by the Emperor Constantine. History would tell us that the purpose of the Council of Nicea was to create statements and canons of doctrinal belief with the intent to define what would become fundamental Christian beliefs, establishing the Nicene Creed. Over many hundreds of years these sacred manuscripts from Yeshua’s team were further translated, studied and then falsified, edited, and omitted from revealing important spiritual concepts, as set forth by the decisions made by the powers behind the Council of Nicaea and the Drakonian leadership that had infiltrated the Church of Rome. Thus, the original content of the earliest translations of the hand written manuscripts and assortment of early Bibles were partially taken from the stolen Essene manuscripts that were translated directly by Yeshua. As a result of the ongoing genocidal agendas, the remaining Essene groups went underground and this knowledge was hidden and continued to be passed on in secret, such as to the Cathar sects. Some of those remaining records are within the contents found in the Nag Hammadi, to which the public has only been given limited access to partial information. 
Cathar in France
In general the Cathars were protecting certain esoteric information in the Gnostic texts and gnostic symbols from the Essenes, Christos Templars that accessed hidden energetic templates (12 Tree Grid and Blueprint) that allowed a direct connection to communicate with Christos Mission intelligence at that time. They knew that the Reclamation of Christos Mission had returned to earth to bring the esoteric levels of the Gnostic teachings back to the Law of One, and anchor the covenant with Christos/Krystal Star back into physical matter after the destruction of the Atlantian Cataclysm. Some were aware of the extraterrestrial invasion of NAA, while others thought of these forces as an evil god (demiurge) or Fallen Angelic. In the earlier stages they had the mapmaker map and coordinate points in the Ley Lines, where they would be led to activate and communicate with “chalice” portals of energy that were still able to be accessed through their sacred symbols or channeled knowledge. They translated Coptic text from the Nag Hammadi Scrolls and were told to migrate and bring these original gnostic writings from the original Essenes (at the time of Yeshua Christ-Mary Christ Sophia) in Egypt and bring this information back to the 12th stargate in South France, where it was believed to be easier to protect. They had awareness that the Roman Catholic Church and its organization was infiltrated by the Satanic Draconians/Archons. They were aware of the Mind Control being placed into the planet through these False King of Tyranny religions and their supposed houses of worship, that were designed to enslave the human race through these false father archontic beliefs and the Black Magicians abusing their power.