In Eastern Orthodox (Palamite) theology, there is a distinction between the essence (ousia) and the energies (energeia) of God. It was formulated by Gregory Palamas (1296–1359) as part of his defense of the Athonite monastic practice of Hesychasm against the charge of heresy brought by the humanist scholar and theologian Barlaam of Calabria.

Eastern Orthodox theologians generally regard this distinction as a real distinction, and not just a conceptual distinction. Historically, Western Christian thought, since the time of the Great Schism, has tended to reject the essence–energies distinction as real in the case of God, characterizing the view as a heretical introduction of an unacceptable division in the Trinity and suggestive of polytheism.John Meyendorff (editor), Gregory Palamas – The Triads, p. xi. Paulist Press, 1983, , although that attitude has never been universally prevalent in the Catholic Church and has been even more widely criticised in the Catholic theology for the last century (see section 3 of this article). Retrieved on 12 September 2014.

Historical background

The essence–energy distinction was formulated by Gregory Palamas of Thessaloniki (1296–1359), as part of his defense of the Athonite monastic practice of hesychasmos, the mystical exercise of "stillness" to facilitate ceaseless inner prayer and noetic contemplation of God, against the charge of heresy brought by the humanist scholar and theologian Barlaam of Calabria."accusing Gregory Palamas of Messalianism" Antonio Carile, Η Θεσσαλονίκη ως κέντρο Ορθοδόξου θεολογίας – προοπτικές στη σημερινή Ευρώπη Thessaloniki 2000, pp. 131–140, (English translation provided by the Apostoliki Diakonia of the Church of Greece).Notes on the Palamite Controversy and Related Topics by John S. Romanides, The Greek Orthodox Theological Review, Volume VI, Number 2, Winter, 1960–61. Published by the Holy Cross Greek Orthodox Theological School Press, Brookline, Massachusetts.

The mystagogical teachings of hesychasm were approved in the Eastern Orthodox Church by a series of local Hesychast councils in the 14th century, and Gregory's commemoration during the liturgical season of Great Lent is seen as an extension of the Sunday of Orthodoxy."No doubt the leaders of the party held aloof from these vulgar practices of the more ignorant monks, but on the other hand they scattered broadcast perilous theological theories. Palamas taught that by asceticism one could attain a corporal, i.e. a sense view, or perception, of the Divinity. He also held that in God there was a real distinction between the Divine Essence and Its attributes, and he identified grace as one of the Divine propria making it something uncreated and infinite. These monstrous errors were denounced by the Calabrian Barlaam, by Nicephorus Gregoras, and by Acthyndinus. The conflict began in 1338 and ended only in 1368, with the solemn canonization of Palamas and the official recognition of his heresies. He was declared the 'holy doctor' and 'one of the greatest among the Fathers of the Church', and his writings were proclaimed 'the infallible guide of the Christian Faith'. Thirty years of incessant controversy and discordant councils ended with a resurrection of polytheism" (Simon Vailhé, "Greek Church" in Catholic Encyclopedia (New York: Robert Appleton Company, 1909)

Eastern Orthodox views

Essence and energy In Eastern Orthodox theology God's essence is called ousia, "all that subsists by itself and which has not its being in another", and is distinct from his energies (energeia in Greek, actus in Latin) or activities as actualized in the world.Aristotle East and West by David Bradshaw, pp. 91, 95 Cambridge University Press (27 December 2004)

The ousia of God is God as God is. The essence, being, nature and substance of God as taught in Eastern Christianity is uncreated, and cannot be comprehended in words. According to Lossky, God's ousia is "that which finds no existence or subsistence in another or any other thing".The Mystical Theology of the Eastern Church, by Vladimir Lossky, SVS Press, 1997, pp. 50–55, , (James Clarke & Co. Ltd., 1991. ) God's ousia has no necessity or subsistence that needs or is dependent on anything other than itself.

It is the energies of God that enable us to experience something of the Divine, at first through sensory perception and then later intuitively or noetically. As St John Damascene states in Chapter 4 of An Exact Exposition of the Orthodox Faith, "all that we say positively of God manifests not his nature but the things about his nature."The Mystical Theology of the Eastern Church, by Vladimir Lossky, SVS Press, 1997. (James Clarke & Co. Ltd., 1991, p. 73, )

Type of distinction

Real distinction According to Fr. John Romanides, Palamas considers the distinction between God's essence and his energies to be a "real distinction", as distinguished from the Thomistic "virtual distinction" and the Scotist "formal distinction". Romanides suspects that Barlaam accepted a "formal distinction" between God's essence and his energies.John S. Romanides, Notes on the Palamite Controversy and Related Topics . Orthodoxinfo.com. Retrieved on 13 September 2014. Other writers agree that Palamas views the distinction between the divine essence and the divine energies as "real".Joseph Pohle, Dogmatic Theology, "The Essence of God in Relation to His Attributes", vol. 1, p. 146Erwin Fabhlbusch, The Encyclopedia of Christianity, vol. 4, p. 13, . Eerdmans. Retrieved on 13 September 2014.John Meyendorff (1979) Byzantine Theology: Historical Trends and Doctrinal Themes, p. 59. Fordham University Press, . Retrieved on 13 September 2014.John Farrelly (2005) The Trinity: Rediscovering the Central Christian Mystery, Rowman & Littlefield. p. 108. . Retrieved on 13 September 2014.Cistercian Studies, vol. 7 (1990), Cistercian Publications, p. 258. Books.google.com. Retrieved on 13 September 2014.Vladimir Lossky, The Mystical Theology of the Eastern Church, pp. 73, 77. St Vladimir's Seminary Press, 1976 . Retrieved on 13 September 2014.Gabriel Bunge, The Rublev Trinity, p. 75. St. Vladimir's Seminary Press, 1 January 2007, , Retrieved on 13 September 2014.Karl Rahner, Encyclopedia of Theology: A Concise Sacramentum Mundi, p. 391. A&C Black, 1975, . Retrieved on 13 September 2014.

According to Vladimir Lossky of the neopatristic school, if we deny the real distinction between essence and energy, we cannot fix any clear borderline between the procession of the divine persons (as existences and/or realities of God) and the creation of the world: both the one and the other will be equally acts of the divine nature (strictly uncreated from uncreated). The being and the action(s) of God then would appear identical, leading to the teaching of pantheism."If we deny the real distinction between essence and energy, we cannot fix any very clear borderline between the procession of the divine persons and the creation of the world: both the one and the other will be equally acts of divine nature. The being and the action of God would then appear to be identical and as having the same character of necessity, as is observed by St Mark of Ephesus (fifteenth century). We must then distinguish in God His nature, which is one; and three hypostases; and the uncreated energy which proceeds from and manifests forth the nature from which it is inseparable. If we participate in God in His energies, according to the measure of our capacity, this does not mean that in His procession ad extra God does not manifest Himself fully. God is in no way diminished in His energies; He is wholly present in each ray of His divinity." The Mystical Theology of the Eastern Church, by Vladimir Lossky, SVS Press, 1997, pp. 73–75 () James Clarke & Co. Ltd., 1991. ()

Modern interpretation Some contemporary scholars argue against describing Palamas's essence–energies distinction in God as a metaphysically "real" distinction. Orthodox philosophical theologian David Bentley Hart expresses doubt "that Palamas ever intended to suggest a real distinction between God's essence and energies."David Bentley Hart, The Beauty of the Infinite, p. 204, Eerdmans, 2004, . Retrieved on 13 September 2014. G. Philips argues that Palamas's distinction is not an "ontological" distinction but, rather, analogous to a "formal distinction" in the Scotist sense of the term.Michael J. Christensen, Jeffery A. Wittung (editors), Partakers of the Divine Nature: The History and Development of Deificiation in the Christian Traditions (Associated University Presses 2007 ), pp. 243–244, Fairleigh Dickinson Univ Press, 2007 . Retrieved on 13 September 2014. According to Dominican Catholic theological historian Fr. Aidan Nichols, Palamas's essence–energies distinction is "not simply by virtue of his saving action ab extra, much less as a merely 'formal' distinction, something demanded by the limited operating capacities of human minds."

According to Anna N. Williams's study of Palamas, which is more recent than the assessments of Hart and Philips, in only two passages does Palamas state explicitly that God's energies are "as constitutively and ontologically distinct from the essence as are the three Hypostases," and in one place he makes explicit his view, repeatedly implied elsewhere, that the essence and the energies are not the same; but Williams contends that not even in these passages did Palamas intend to argue for an "ontological or fully real distinction," and that the interpretation of his teaching by certain polemical modern disciples of his is false.

Eastern Orthodox criticism of Western theology

Eastern Orthodox theologians have criticized Western theology, especially the traditional scholastic claim that God is actus purus, for its alleged incompatibility with the essence–energies distinction. Christos Yannaras writes, "The West confuses God's essence with his energy, regarding the energy as a property of the divine essence and interpreting the latter as "pure energy" (actus purus)"Christos Yannaras, Orthodoxy and the West: Hellenic Self-Identity in the Modern Age (Holy Cross Orthodox Press, 2006), p. 36. According to George C. Papademetriou, the essence–energies distinction "is contrary to the Western confusion of the uncreated essence with the uncreated energies and this is by the claim that God is Actus Purus".George C. Papademetriou, Introduction to St. Gregory Palamas (Holy Cross Orthodox Press, 2004), p. 61.

Catholic perspectives The Catholic Church distinguishes between doctrine, which is single and must be accepted by Catholics, and theological elaborations of doctrine, about which Catholics may legitimately disagree. With respect to the Eastern and Western theological traditions, the Catholic Church recognizes that, at times, one tradition may "come nearer to a full appreciation of some aspects of a mystery of revelation than the other, or [express] it to better advantage." In these situations, the Church views the various theological expressions "often as mutually complementary rather than conflicting." A concrete example of the application of this principle is the separate presentation in the 1912 Catholic Encyclopedia article on the Blessed Trinity of the Church's doctrine on the Trinity as interpreted in Greek theology and in Latin theology, without denigrating either interpretation.