The wisdom attributed to this figure in antiquity combined a knowledge of both the material and the spiritual world, which rendered the writings attributed to him of great relevance to those who were interested in the interrelationship between the material and the divine.[1]
The figure of Hermes Trismegistus can also be found in bothMuslim andBaháʼí writings. In those traditions, Hermes Trismegistus has been associated with the prophetIdris (the BiblicalEnoch).
Hermes, the Greek god of interpretive communication, was combined with Thoth, the Egyptian god of wisdom. The Egyptian priest andpolymathImhotep had been deified long after his death, and therefore assimilated to Thoth in theclassical andHellenistic periods.[6] The renowned scribeAmenhotep and a wise man named Teôs were coequal deities of wisdom, science, and medicine; and, thus, they were placed alongside Imhotep in shrines dedicated to Thoth–Hermes during the Ptolemaic Kingdom.[7]
Cicero enumerates several deities referred to as "Hermes":
"fourthMercury (Hermes) was the son of the Nile, whose name may not be spoken by the Egyptians"
"the fifth, who is worshiped by the people ofPheneus [inArcadia], is said to have killedArgus Panoptes, and for this reason to have fled to Egypt, and to have given the Egyptians their laws and alphabet: It is him whom the Egyptians callTheyt"[8](bk. III, ch. 56)
The most likely interpretation of this passage is as two variants on the samesyncretism of Greek Hermes and Egyptian Thoth (or sometimes other gods): The fourth (where Hermes turns out "actually" to have been a "son of the Nile", (i.e. a native Egyptian god) is the Egyptian perspective, the fifth (who went from Greece to Egypt) is the Arcadian Greek perspective. Both of these early references in Cicero (the oldest Trismegistus material is from the earlycenturiesCE) corroborate the view that Thrice-Great Hermes originated in Hellenistic Egypt through syncretism between Greek and Egyptian gods (theHermetica refer most often toThoth andAmun).[8]
The Hermetic literature of the Egyptians was concerned with conjuring spirits and animating statues, the newly developed practice ofalchemy, and informs the oldest Hellenistic writings on Greco-Babylonianastrology.[9] In a parallel tradition,Hermetic philosophy rationalized and systematized religiouscult practices and offered the adept a means of personal ascension from the constraints of physical being. This latter tradition has led to the conflation of Hermeticism with the contemporaneously developing, but distinct,Gnosticism.[10]
Youthful, athletic Hermes-Thoth, identified byMaat feather between his headdress-wings.[11]
Traditional depiction of Thoth as theibis with said Feather of Truth.
Fowden asserts that the first datable occurrences of the epithet "thrice great" are in theLegatio ofAthenagoras of Athens and in a fragment fromPhilo of Byblos,c.64–141CE.[12] However, in a later work, Copenhaver reports that this epithet is first found in the minutes of a meeting of the council of theIbiscult, held in 172 BCE nearMemphis in Egypt.[13](p xiv) Hart explains that the epithet is derived from an epithet of Thoth found at the Temple ofEsna, "Thoth the great, the great, the great."[4]
Many Christian writers, includingLactantius,Augustine,Marsilio Ficino,Campanella, andGiovanni Pico della Mirandola, as well asGiordano Bruno, considered Hermes Trismegistus to be a wisepagan prophet who foresaw the coming ofChristianity.[14][15] They believed in the existence of aprisca theologia, a single, true theology that threads through all religions. It was given by God to man in antiquity[16][17] and passed through a series of prophets, which includedZoroaster andPlato. In order to demonstrate the verity of theprisca theologia, Christians appropriated the Hermetic teachings for their own purposes. By this account, Hermes Trismegistus was either a contemporary ofMoses,[16](pp 27, 293) or the third in a line of men named Hermes, i.e.Enoch,Noah, and the Egyptian priest king who is known to us as Hermes Trismegistus[16](p 52) on account of being the greatest priest, philosopher, and king.[13](p xlviii)[16](p 52)
Another explanation, in theSuda (10th century), is that "He was called 'Trismegistus' on account of his praise of the trinity, saying there is one divine nature in the trinity."[13](p xli)
During theMiddle Ages and theRenaissance, theHermetica enjoyed great prestige and were popular among alchemists. Hermes was also strongly associated with astrology, for example by the influential Islamic astrologerAbu Ma'shar al-Balkhi (787–886).[18] The "Hermetic tradition" consequently refers to alchemy, magic, astrology, and related subjects. By modern convention the texts are usually subdivided into two categories:
The expressionhermetically sealed comes from the alchemical procedure to make thePhilosopher's Stone. This required a mixture of materials to be placed in a glass vessel which was sealed by melting and fusing the neck closed, a procedure known as the "Seal of Hermes". The vessel was then heated for 30–40 days.[19]
During theRenaissance, it was accepted that Hermes Trismegistus was a contemporary ofMoses. However, afterIsaac Casaubon's demonstration in 1614 that the Hermetic writings must postdate the advent of Christianity, the whole of Renaissance Hermeticism collapsed.[20] As to their actual authorship:
... they were certainly not written in remotest antiquity by an all wise Egyptian priest, as the Renaissance believed, but by various unknown authors, all probably Greeks, and they contain popular Greek philosophy of the period, a mixture ofPlatonism andStoicism, combined with some Jewish and probably some Persian influences.[16](pp 2–3)
Faivre (1995) has pointed out that Hermes Trismegistus has a place in theIslamic tradition, although the name Hermes does not appear in theQur'an.[22]Hagiographers and chroniclers of the first centuries of the IslamicHijrah quickly identified Hermes Trismegistus withIdris,[b] theIslamic prophet ofsurahs 19.57 and 21.85, whom Muslims also identified withEnoch (cf. Genesis 5:18–24). According to the account of the Persian astrologerAbu Ma'shar al-Balkhi (787–886), Idris / Hermes was termed "Thrice-Wise" Hermes Trismegistus because he had a threefold origin. The first Hermes, comparable toThoth, was a "civilizing hero", an initiator into the mysteries of the divine science and wisdom that animate the world; he carved the principles of this sacred science inhieroglyphs. The second Hermes, inBabylon, was the initiator ofPythagoras. The third Hermes was the first teacher ofalchemy. IslamicistPierre Lory writes:
"A faceless prophet, Hermes[Trismegistus] possesses no concrete or salient characteristics, differing in this regard from most of the major figures of the Bible and the Quran."[23]
^A survey of the literary and archaeological evidence for the background of Hermes Trismegistus as the Greek godHermes and the Egyptian godThoth may be found inBull (2018).
^"Abu Mas'har’s biography of Hermes, written approximately between 840 and 860, would establish it as common knowledge."Van Bladel (2009), p. 168
^van den Broek, Roelof (2006). "Hermes Trismegistus I: Antiquity". In Hanegraaff, Wouter J. (ed.).Dictionary of Gnosis and Western Esotericism. Leiden, NL: Brill. pp. 474–478.ISBN9789004152311.
^Bull, Christian H. (2018). "The Myth of Hermes Trismegistus".The Tradition of Hermes Trismegistus: The Egyptian priestly figure as a teacher of Hellenized wisdom. Religions in the Graeco-Roman World. Vol. 186. Leiden, NL / Boston, MA: Brill. pp. 31–96.doi:10.1163/9789004370845_003.ISBN978-90-04-37081-4.ISSN0927-7633.S2CID172059118.
^Boylan, Patrick (1922).Thoth or the Hermes of Egypt: A study of some aspects of theological thought in ancient Egypt. Oxford University Press. pp. 166–168.
^Fowden, G. (1987).The Egyptian Hermes. Cambridge, UK: Cambridge University Press. p. 216.
^abcCopenhaver, B.P. (1992).Hermetica. Cambridge University Press. pp. ,xli,xlviii.
^Heiser, James D. (2011).Prisci Theologi and the Hermetic Reformation in the Fifteenth Century (1st ed.). Malone, TX: Repristination Press.ISBN978-1-4610-9382-4.
^Jafar, Imad (Winter 2015)."Enoch in the Islamic tradition"(PDF).Sacred Web: A Journal of Tradition and Modernity.36: 37 ff.ISSN1480-6584. Retrieved28 September 2025 – via sacredweb.org.
Aufrère, Sydney H. (2008, in French)Thot Hermès l'Egyptien: De l'infiniment grand à l'infiniment petit. Paris, FR: L'Harmattan.ISBN978-2296046399.
Bull, Christian H. (2018)The Tradition of Hermes Trismegistus: The Egyptian priestly figure as a teacher of hellenized wisdom. Leiden, NL: Brill. — the standard reference work on the subject.
Caciorgna, Marilena & Guerrini, Roberto (2004, in Italian) "Il pavimento del duomo di Siena" inL'arte della tarsia marmorea dal XIV al XIX secolo fonti e simologia. Siena, IT.
Caciorgna, Marilena (27–28 September 2002).Studi interdisciplinari sul pavimento del duomo di Siena [Interdisciplinary studies on the floor of the Siena Cathedral]. El convegno internazionale di studi chiesa della SS. Annunziata 27 e 28 settembre 2002 [The International Conference on Studies of the Church of the Holy Annunciation, 27–28 September 2002, Siena]. Collana di studi e ricerche (Opera della Metropolitana di Siena) (in Italian). Vol. 2. Siena, IT: Cantagalli (published 2005).ISBN978-8-8827-2214-2.OCLC60390508.
Copenhaver, Brian P. (1995)Hermetica: The Greek Corpus Hermeticum and the Latin Asclepius in a new English translation, with notes and introduction. Cambridge, UK / New York, NY: Cambridge University Press,ISBN0-521-42543-3.
Ebeling, Florian (2007)The secret history of Hermes Trismegistus: Hermeticism from ancient to modern times [translated from the German by David Lorton]. Ithaca, NY: Cornell University Press,ISBN978-0-8014-4546-0.
Festugière, A.-J. (1981, in French)La révélation d'Hermès Trismégiste. 2e éd. Paris, FR.
Fowden, Garth (1993) [1986].The Egyptian Hermes: A historical approach to the late pagan mind. Princeton University Press.— deals with Thoth (Hermes) from his most primitive known conception to his later evolution into Hermes Trismegistus, as well as the many books and scripts attributed to him.
Furtwangler, Adolf (1906). "Noch einmal zu Hermes-Thot und Apis".Bonner Jahrbücher (in German). pp. 114–115, 198 ff.
Furtwangler, Adolf (1898). "Römische Bronzen aus Deutschland".Bonner Jahrbücher (in German). p. 103.
Hornung, Erik (2001)The Secret Lore of Egypt: Its impact on the west. Translated by David Lorton. Ithaca, NY: Cornell University Press.ISBN0801438470.
Lupini, Carmelo (2010, in Italian) see "Ermete Trismegisto" inDizionario delle Scienze e delle Tecniche di Grecia e Roma, vol. 1. Roma, IT.