In the Platonic, Neopythagorean, Middle Platonic, and Neoplatonic schools of philosophy, the demiurge is an artisan-like figure responsible for fashioning and maintaining the physical universe. The Gnostics adopted the term demiurge. Although a fashioner, the demiurge is not necessarily the same as the creator figure in the monotheistic sense, because the demiurge itself and the material from which the demiurge fashions the universe are both considered consequences of something else. Depending on the system, they may be considered either uncreated and eternal or the product of some other entity.
Gnosticism is a collection of religious ideas and systems that coalesced in the late 1st century AD among Jewish and early Christian sects. These various groups emphasized personal spiritual knowledge (gnosis) above the proto-orthodox teachings, traditions, and authority of religious institutions. Gnostic cosmogony generally presents a distinction between a supreme, hidden God and a malevolent lesser divinity who is responsible for creating the material universe. Consequently, Gnostics considered material existence flawed or evil, and held the principal element of salvation to be direct knowledge of the hidden divinity, attained via mystical or esoteric insight. Many Gnostic texts deal not in concepts of sin and repentance, but with illusion and enlightenment.
The concept of an Ogdoad appears in Gnostic systems of the early Christian era, and was further developed by the theologian Valentinus.
Valentinus, also spelled Valentinius; c. AD 100 – c. 180, was the best known and, for a time, most successful early Christian Gnostic theologian. He founded his school in Rome. According to Tertullian, Valentinus was a candidate for bishop but started his own group when another was chosen.
Pleroma generally refers to the totality of divine powers. It is used in Christian theological contexts, especially in Gnosticism. The term also appears in the Epistle to the Colossians, which is traditionally attributed to Paul the Apostle. The word is used 17 times in the New Testament.
The Gospel of Philip is a non-canonical Gnostic Gospel dated to around the 3rd century but lost in medieval times until rediscovered by accident, buried with other texts near Nag Hammadi in Egypt, in 1945.
The Apocryphon of John, also called the Secret Book of John or the Secret Revelation of John, is a 2nd-century Sethian Gnostic Christian pseudepigraphical text attributed to John the Apostle. It is one of the texts addressed by Irenaeus in his Against Heresies, placing its composition before 180 AD. It is presented as describing Jesus appearing and giving secret knowledge (gnosis) to his disciple John. The author describes it as having occurred after Jesus had "gone back to the place from which he came".
Heracleon was a Gnostic who flourished about AD 175, probably in the south of Italy. He is described by Clement of Alexandria as the most esteemed (δοκιμώτατος) of the school of Valentinus; and, according to Origen, said to have been in personal contact (γνώριμος) with Valentinus himself. He is barely mentioned by Irenaeus (2.4.1) and by Tertullian (adv. Valent. 4). The common source of Philaster and Pseudo-Tertullian (i.e. probably the earlier treatise of Hippolytus) contained an article on Heracleon between those on Ptolemaeus and Secundus, and on Marcus and Colarbasus.
The Holy Book of the Great Invisible Spirit, also known as the Coptic Gospel of the Egyptians, is a Sethian Gnostic text found in Codices III and IV of the Nag Hammadi library. The text describes the origin of three powers: the Father, the Mother, and the Son, who came forth from the great invisible Spirit. The text emphasizes Seth as the origin of the seed of eternal life and the great, incorruptible race. It concludes with a prayer and a statement that it was written by the great Seth and placed in the mountain Charaxio to be revealed at the end of times.
The Epistle of Eugnostos or Eugnostos the Blessed is a Gnostic epistle found in Codices III and V of the Nag Hammadi library. Both copies seem to be a Coptic translation of a Greek original that was composed in Egypt around the late 1st century; the copy from Codex III is the earlier translation. Scholars note that the text is interrelated with The Sophia of Jesus Christ; SJC adds more specifically Christian elements to the cosmology-focused Eug. The text is a philosophical discourse on the nature of God and the world. The author asserts that previous human inquiries have failed to reach the truth about the nature of God, who is ineffable and beyond human understanding. The author describes a belief system in which there is an Immortal Man who reveals various aeons and powers with different names and authorities over different kingdoms and worlds.
The Sethians were one of the main currents of Gnosticism during the 2nd and 3rd century CE, along with Valentinianism and Basilideanism. According to John D. Turner, it originated in the 2nd century CE as a fusion of two distinct Hellenistic Judaic philosophies and was influenced by Christianity and Middle Platonism. However, the exact origin of Sethianism is not properly understood.
The Thought of Norea is a Sethian Gnostic text. It is the second of three treatises in Codex IX of the Nag Hammadi library texts, taking up pages 27–29 of the codex's 74 pages. The text consists of only 52 lines, making it one of the shortest treatises in the entire library. The work is untitled; editor Birger A. Pearson created the title from the phrase "the thought of Norea" that appears in the final sentence of the text. The text expands Norea's plea for deliverance from the archons in Hypostasis of the Archons. It is divided into four parts: an invocation, Norea's cry and deliverance, her activity in the Pleroma, and salvation.
Allogenes is a series of Gnostic texts. The main character in these texts is Allogenes, which translates as 'stranger,' 'foreigner,' or 'of another race.' The first text discovered was Allogenes as the third tractate in Codex XI of the Nag Hammadi library. The Coptic manuscript is a translation of a Greek original, likely written in Alexandria before 300 AD. In this text, containing Middle Platonic or Neoplatonic elements, Allogenes receives divine revelations.
The Gospel of the Truth is one of the Gnostic texts from the New Testament apocrypha found in the Nag Hammadi codices ("NHC"). It exists in two Coptic translations, a Subakhmimic rendition surviving almost in full in the first Nag Hammadi codex and a Sahidic in fragments in the twelfth codex.
Valentinianism was one of the major Gnostic Christian movements. Founded by Valentinus in the 2nd century AD, its influence spread widely, not just within Rome but also from Northwest Africa to Egypt through to Asia Minor and Syria in the East. Later in the movement's history it broke into an Eastern and a Western school. Disciples of Valentinus continued to be active into the 4th century AD, after the Roman Emperor Theodosius I issued the Edict of Thessalonica, which declared Nicene Christianity as the State church of the Roman Empire.
The Tripartite Tractate is a Valentinian Gnostic work. The date is estimated to the second half of the third century or the fourth century but is "most likely based on an earlier Greek version." It is the second-longest text in the Nag Hammadi library. It is the fifth tractate of the first codex, known as the Jung Codex. It is untitled, and instead it gets its name "from the fact that the ancient copyist divided the text with decorative markings in two places, thus separating the tractate into three parts." The first part describes the relationship between the Father, the Logos, the Church, and the aeons. The second part contains the Gnostic creation narrative, in which man is created by the Demiurge and is a mixture of both spiritual and material substances. The third part explains the Savior's role in salvation.
The Treatise on the Resurrection is an ancient Gnostic or quasi-Gnostic Christian text which was found at Nag Hammadi, Egypt. It is also sometimes referred to as "The Letter to Rheginos" because it is a letter responding to questions about the resurrection posed by Rheginos, who may have been a non-Gnostic Christian.
In many Gnostic systems, various emanations of God are known by such names as One, Monad, Aion teleos, Bythos, Proarkhe, Arkhe, and Aeons. In different systems these emanations are differently named, classified, and described, but emanation theory is common to all forms of Gnosticism. In Basilidian Gnosis they are called sonships ; according to Marcus, they are numbers and sounds; in Valentinianism they form male/female pairs called syzygies.
Sophia is a major theme, along with Knowledge, among many of the early Christian knowledge-theologies grouped by the heresiologist Irenaeus as gnostikoi (γνωστικοί), "knowing" or "men that claimed to have deeper wisdom". Gnosticism is a 17th-century term expanding the definition of Irenaeus' groups to include other syncretic and mystery religions.
