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Simon Magus: The Father of Gnosticism and His Teachings

Updated: April 2026

Simon Magus was a first-century Samaritan figure who appears in Acts 8 as a sorcerer rebuked by Peter. The Church Fathers, beginning with Irenaeus of Lyon around 180 CE, identified him as the origin of all Gnostic heresy. His reported system posits a supreme divine power whose First Thought (Ennoia), personified as his companion Helena, descended through angelic realms and became trapped in matter, requiring divine rescue.

Last Updated: February 2026
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Key Takeaways

  • The only New Testament mention of Simon Magus is Acts 8:9-24, where he is described as a Samaritan sorcerer who offered money for the apostles' power to bestow the Holy Spirit, giving rise to the term "simony" for the buying and selling of religious offices.
  • Irenaeus of Lyon (c. 180 CE) identified Simon as the source from which all Gnostic heresies derived, reporting a cosmological system in which Simon's "First Thought" (Ennoia), personified as his companion Helena of Tyre, descended through angelic hierarchies and became trapped in successive bodies.
  • The Simonian system contains the essential Gnostic pattern in miniature: a divine emanation falls, becomes imprisoned by lower cosmic powers, and requires the descent of a heavenly saviour to liberate it, prefiguring the elaborate mythologies of Valentinus and the Sethian Gnostics.
  • Justin Martyr (c. 155 CE) claimed a statue was erected to Simon in Rome, but the inscription he cites ("Simoni Deo Sancto") almost certainly refers to the Sabine deity Semo Sancus, whose altar was found on the Tiber island in 1574.
  • Whether the theological system attributed to Simon was actually taught by the historical Samaritan figure in Acts, or was projected onto him by later heresiologists constructing a genealogy of heresy, remains one of the open questions in Gnostic studies.

Simon in the Acts of the Apostles

Acts 8:9-24 provides the earliest and only canonical reference to Simon. The passage is brief but loaded. Philip, one of the seven deacons, goes to Samaria and preaches the gospel. He encounters a man named Simon who "had previously practised magic in the city and amazed the people of Samaria, saying that he himself was somebody great" (Acts 8:9, NRSV). The Samaritans, from the least to the greatest, paid attention to him, saying, "This man is the power of God that is called Great" (8:10).

The phrase is peculiar. "The power of God that is called Great" (he dynamis tou theou he kaloumene Megale) is not a standard Jewish or Christian title. It implies a theological claim that the author of Acts found significant enough to record verbatim. Whether Simon himself made this claim, or whether his followers made it about him, the title "Great Power" will reappear in every subsequent account of Simon's teachings.

After Philip's preaching, Simon believed and was baptized. But when the apostles Peter and John came from Jerusalem and began conferring the Holy Spirit through the laying on of hands, Simon offered them money: "Give me also this power so that anyone on whom I lay my hands may receive the Holy Spirit" (8:19). Peter's response was sharp: "May your silver perish with you, because you thought you could obtain God's gift with money" (8:20).

What Acts Does Not Say

The Acts passage does not call Simon a Gnostic. It does not mention Helena. It does not describe an elaborate cosmological system. It presents Simon as a powerful local figure, possibly a religious leader of some kind, who was impressed by apostolic power and tried to purchase it. The vast theological edifice attributed to Simon in later sources is not even hinted at. This gap between the Acts account and the heresiological Simon is the central problem for anyone trying to reconstruct the historical figure.

The Word "Simony" and Its Legacy

Simon's attempt to buy spiritual power gave English (and most European languages) the word "simony": the buying or selling of ecclesiastical privileges, offices, or sacred things. The term was already in use by the early medieval period. Pope Gregory I (590-604 CE) invoked Simon Magus in his condemnations of clerical corruption. Dante placed simonists in the eighth circle of Hell (Inferno, Canto XIX), buried head-first in rock with flames licking their feet.

The irony is that Simon's actual "sin" in Acts was not selling something sacred but attempting to buy it. He wanted the power to confer the Holy Spirit. The word "simony" expanded well beyond this original scenario to cover the entire economy of sacred commerce that plagued the medieval church.

Irenaeus's Portrait: The Father of All Heresies

Irenaeus of Lyon, writing around 180 CE in Adversus Haereses (Against Heresies), provided the most influential account of Simon's teachings. Irenaeus's purpose was polemical: he was constructing a genealogy of heresy, tracing all Gnostic error back to a single corrupt source. Simon was his chosen origin point.

According to Irenaeus (I.23), Simon was from the Samaritan village of Gitta. He claimed to be the supreme power, "he who is above all things, the Father." He was the one who had appeared among the Jews as the Son (Jesus), among the Samaritans as the Father, and among the Gentiles as the Holy Spirit. The attribution of shape-shifting divine appearances anticipates the later Gnostic concept of docetism (the idea that divine beings only appear to take material form).

Irenaeus reports that Simon travelled with a woman named Helena, whom he claimed to have found in a brothel in Tyre. Helena, Simon taught, was his Ennoia (First Thought), the original emanation of his divine mind.

Ennoia and Helena: The Fallen First Thought

The Helena myth is the centrepiece of the Simonian system and one of the most significant narratives in the history of Gnosticism. According to Irenaeus's account:

The supreme power (Simon) generated his First Thought (Ennoia). Ennoia descended through the lower cosmic regions, where she was captured by the angels and powers that she herself had generated. These powers, not wanting to be known as her offspring, imprisoned her in a human body. She passed from body to body through the centuries, suffering degradation at each stage. She was Helen of Troy (and thus the real cause of the Trojan War). She was reincarnated through various forms until she ended up as a prostitute in Tyre.

Simon descended to rescue her. His descent into the lower world to find and liberate his lost First Thought is, in miniature, the entire Gnostic salvation drama: a divine element falls into matter, is held captive by the cosmic archons, and can only be freed by the descent of the divine being from whom it originally emanated.

The Pattern in Miniature

What makes the Ennoia myth significant for the history of Gnosticism is that it contains, in compressed form, every element that will later appear in the elaborate Valentinian system: divine emanation, fall through ignorance or overreach, entrapment by lower cosmic powers, reincarnation, and salvific descent of a heavenly redeemer. Whether Simon actually taught this, or whether later Gnostic ideas were projected backward onto him to create a founding narrative, the structural parallel is unmistakable. Irenaeus wanted to prove that all heresy came from Simon. In doing so, he inadvertently demonstrated that the Gnostic mythological pattern was already fully formed, at least in its essential structure, by the time he was writing.

The Simonian Theological System

Beyond the Ennoia myth, the heresiologists attribute a broader theological system to Simon. Hippolytus of Rome (Refutation of All Heresies, VI.9-18, written c. 222 CE) provides the most detailed account, claiming to draw on a Simonian text called the Apophasis Megale (Great Declaration or Great Announcement).

According to Hippolytus, the Simonian system described a divine fire as the first principle, from which all things emerge in paired emanations (syzygies). The fire is both manifest and hidden, and the hidden aspect is contained within the manifest "like a treasure." Reality unfolds through three pairs of emanations:

Pair Emanation Corresponding Realm
First Mind (Nous) and Thought (Epinoia) Heaven
Second Voice (Phone) and Name (Onoma) Sun and Moon
Third Reason (Logismos) and Reflection (Enthymesis) Air and Earth

The system is binary throughout: hidden/manifest, male/female, above/below. This structure of paired emanations (syzygies) will become central to Valentinian Gnosticism, where the Pleroma is populated by paired Aeons.

Whether the Apophasis Megale was genuinely Simonian or a later text attributed to Simon is debated. Gerd Lüdemann, in his 1975 study Untersuchungen zur simonianischen Gnosis, argued that the text reflects second-century developments rather than first-century Samaritan religion. Stephen Haar, in Simon Magus: The First Gnostic? (Sheffield, 2003), takes a more cautious position, noting that some elements of the system may preserve early Samaritan theological traditions even if the text itself is later.

Justin Martyr and the Statue on the Tiber

Justin Martyr, writing around 155 CE in his First Apology (chapter 26), provided another layer to the Simon legend. Justin claims that Simon went to Rome during the reign of Claudius (41-54 CE), performed great acts of magic, and was honoured as a god. He states that a statue was erected to Simon on the Tiber island with the inscription "Simoni Deo Sancto" (To Simon the Holy God).

This claim was repeated by many subsequent writers. But in 1574, a stone altar was discovered on the Tiber island bearing the inscription "Semoni Sanco Deo Fidio," a dedication to the Sabine deity Semo Sancus, a god of oaths and trustworthiness. The similarity between "Semoni Sanco" and "Simoni Sancto" is striking enough that most scholars now believe Justin or his source confused the two inscriptions.

What the Statue Error Tells Us

Justin's mistake (if it was a mistake) reveals something important about how the Simon legend grew. Early Christian writers were eager to place Simon in Rome, the centre of apostolic authority, to set up the narrative of Peter's triumph over the arch-heretic. The statue provided "proof" that Romans had worshipped Simon as a god. Once established, the claim was repeated uncritically for centuries. This is a caution: the heresiological tradition about Simon is not neutral reportage. It is theological argument dressed as history. Every claim about Simon comes from writers who had an agenda, which does not mean everything they say is false, but it means nothing can be taken at face value.

The Pseudo-Clementine Debates

The Pseudo-Clementine literature (the Recognitions and the Homilies, dating to the 3rd-4th centuries CE) presents extended philosophical debates between Peter and Simon across multiple cities. These are literary compositions, not historical records, but they are valuable for understanding how Simon was used as a theological foil.

In the Pseudo-Clementines, Simon argues positions that closely resemble Pauline theology: the God of the Old Testament is a lesser deity, the Law is oppressive, and salvation comes through knowledge rather than works. Many scholars, beginning with Ferdinand Christian Baur in the 19th century, have argued that "Simon" in the Pseudo-Clementines is a cipher for Paul, and the debates encode an intra-Christian conflict between Jewish-Christian (Petrine) and Gentile-Christian (Pauline) factions.

This reading remains controversial, but the parallels are hard to dismiss entirely. The Pseudo-Clementine Simon teaches that the creator God of Genesis is not the highest God, a position Paul never stated explicitly but that Marcionite interpreters of Paul did state. The literary Simon may be a composite: part historical Samaritan, part theological stand-in for Pauline Christianity as seen through Jewish-Christian eyes.

The Historical Simon: What Can We Actually Know?

Stripping away the layers of heresiological polemic, Pseudo-Clementine fiction, and later legend, what remains?

A Samaritan religious leader of the first century CE, active in the region around Samaria, who commanded significant local authority and was identified with or claimed the title "the Great Power of God." He was known to the early Christian community and was remembered (in Acts) for attempting to purchase apostolic power. His followers, the Simonians, persisted at least into the second century, when Irenaeus and Justin encountered them or their tradition.

Whether this historical Simon actually taught the elaborate cosmological system attributed to him by Irenaeus and Hippolytus is unknowable. The system as described bears structural similarities to later Gnostic thought and may represent developments within the Simonian community after Simon's death rather than his own teaching. Alternatively, the heresiologists may have accurately preserved a genuinely early Gnostic system, making Simon's teaching the prototype for what would become the Valentinian and Sethian traditions.

Samaritan Religious Context

Understanding Simon requires understanding Samaria. The Samaritans had their own religious tradition, centred on Mount Gerizim rather than Jerusalem, with their own version of the Pentateuch and their own priestly lineage. Samaritan theology included concepts of divine power, mediation, and redemption that were distinct from both mainstream Judaism and early Christianity. Jarl Fossum, in The Name of God and the Angel of the Lord (1985), argued that Samaritan angelology and theology of the divine Name provided fertile ground for the kind of speculation attributed to Simon. The "Great Power" title may have roots in Samaritan rather than Greek theological vocabulary.

Simon and Later Gnosticism

Regardless of what the historical Simon actually taught, the system attributed to him occupies a structurally important position in the development of Gnostic thought. The Ennoia myth contains the basic Gnostic salvation narrative: divine fall, cosmic entrapment, and redemptive descent. The syzygy system (paired emanations) prefigures the Valentinian Pleroma. The distinction between the hidden supreme God and the visible creator god anticipates the Demiurge of later Gnostic systems.

The connection to the broader Hermetic tradition runs through shared Alexandrian and Near Eastern intellectual currents. Both Simonian Gnosticism and Hermeticism work with emanation from a divine source, entrapment in materiality, and knowledge (gnosis) as the path of return. The Hermetic Synthesis Course examines these structural parallels in detail.

Whether Simon deserves the title "Father of Gnosticism" is a question of definition. If Gnosticism is defined by its mythological structure (divine fall, archontic imprisonment, salvific knowledge), then the Simonian system, even if reconstructed from hostile sources, represents one of the earliest attested expressions of that structure. Alberto Ferreiro's Simon Magus in Patristic, Medieval and Early Modern Traditions (Brill, 2005) traces how the figure was continually reinterpreted across fifteen centuries of Christian thought, always serving the theological needs of the interpreter.

The First Gnostic Question

Simon Magus is, at minimum, the figure around whom the earliest Gnostic question crystallized: if there is a supreme divine reality, why is the world as it is, and how did part of that divinity become trapped here? The Ennoia myth, whether Simon's own or a later elaboration, frames this question with a clarity and narrative force that powered Gnostic speculation for centuries. Every subsequent Gnostic system, from Valentinus to the Mandaeans, addresses the same basic problem. Simon, or the tradition that bears his name, asked it first.

Recommended Reading

The Origenist Controversy: The Cultural Construction of an Early Christian Debate (Princeton Legacy Library Book 146) by Clark, Elizabeth A.

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Frequently Asked Questions

Who was Simon Magus?

Simon Magus was a first-century Samaritan figure described in Acts 8:9-24 as a powerful sorcerer who offered money to the apostles for the ability to confer the Holy Spirit. The Church Fathers later identified him as the father of all Gnostic heresies and attributed an elaborate cosmological system to him.

What does "simony" mean?

Simony is the buying or selling of religious offices, privileges, or sacred things. The word derives from Simon Magus's attempt to purchase apostolic power in Acts 8:18-19. It became a major issue in the medieval church and was condemned by numerous popes and church councils.

What is the Ennoia myth?

According to Irenaeus, Simon taught that his First Thought (Ennoia), personified as his companion Helena, descended through the angelic hierarchies that she herself had generated, was captured by them, and was reincarnated through many bodies (including Helen of Troy) until Simon descended to rescue her from a brothel in Tyre. This myth contains the basic Gnostic salvation pattern in miniature.

Was Simon Magus the founder of Gnosticism?

Irenaeus claimed Simon was the source of all heresies. Whether the historical Simon actually taught the system attributed to him is debated. The Simonian system as described by Irenaeus and Hippolytus contains essential Gnostic elements (divine fall, archontic imprisonment, redemptive descent), but some scholars argue these ideas were projected backward onto Simon by later writers.

Did Simon Magus go to Rome?

Justin Martyr (c. 155 CE) claimed Simon went to Rome and was worshipped as a god, with a statue on the Tiber island. The inscription Justin cites almost certainly refers to the Sabine deity Semo Sancus, not Simon. Whether Simon visited Rome independently of this statue claim is unknown.

What is the Apophasis Megale?

The Apophasis Megale (Great Declaration) is a text attributed to Simon and summarized by Hippolytus of Rome (c. 222 CE). It describes reality emanating from a divine fire through three pairs of principles (syzygies). Whether this text was genuinely Simonian or a later composition attributed to him is debated among scholars.

Who was Helena in the Simonian system?

Helena was Simon's companion, described by heresiological sources as a former prostitute from Tyre. In the Simonian theological system, she represented Ennoia (First Thought), the first emanation of the supreme divine power, who had fallen and become trapped in matter through successive reincarnations.

What are the Pseudo-Clementine writings?

The Pseudo-Clementine Recognitions and Homilies (3rd-4th century CE) are literary works depicting debates between Peter and Simon Magus. Some scholars argue that "Simon" in these texts is a cipher for Paul, encoding an early Jewish-Christian vs. Gentile-Christian theological conflict.

How did Simon Magus influence later Christianity?

Simon became the archetype of the heretic in Christian tradition. The concept of simony shaped medieval church law. Dante placed simonists in the eighth circle of Hell. The narrative of Peter defeating Simon in Rome became a foundational legend of papal authority.

What sources do we have for Simon Magus?

Acts 8:9-24 (New Testament), Irenaeus's Adversus Haereses I.23 (c. 180 CE), Justin Martyr's First Apology 26 (c. 155 CE), Hippolytus's Refutation of All Heresies VI.9-18 (c. 222 CE), and the Pseudo-Clementine Recognitions and Homilies (3rd-4th century CE). All sources are hostile to Simon; no Simonian texts survive intact.

What does simony mean?

Simony is the buying or selling of religious offices, privileges, or sacred things. The word derives from Simon Magus's attempt to purchase apostolic power in Acts 8.

Sources

  1. Irenaeus of Lyon. Adversus Haereses. Book I.23. Trans. in Roberts and Donaldson, Ante-Nicene Fathers, vol. 1.
  2. Hippolytus of Rome. Refutation of All Heresies. Book VI.9-18. Trans. J.H. MacMahon, Ante-Nicene Fathers, vol. 5.
  3. Haar, Stephen. Simon Magus: The First Gnostic? Walter de Gruyter, 2003.
  4. Ferreiro, Alberto. Simon Magus in Patristic, Medieval and Early Modern Traditions. Brill, 2005.
  5. Lüdemann, Gerd. Untersuchungen zur simonianischen Gnosis. Vandenhoeck & Ruprecht, 1975.
  6. Fossum, Jarl. The Name of God and the Angel of the Lord. Mohr Siebeck, 1985.
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