Endsjø research focuses on the continuity between traditional Greek religion and early Christian beliefs, sexuality and religion, immortality beliefs, religion and human rights, and religion and popular culture.
In his book Greek Resurrection Beliefs and the Success of Christianity (2009), he demonstrates how Christian resurrection beliefs also connect to ancient Greek beliefs in resurrection and physical immortality and may have contributed to the early success of Christianity in the Hellenistic Mediterranean.[2] The book Primordial Landscapes, Incorruptible Bodies (2008) deals with the continuity of geography, asceticism, immortality between traditional Greek and early Christian worldviews.[3] His book Flesh and Bones Forever: A History of Immortality examines the history of immortality beliefs in the Western tradition,[4] and is published in English, Latvian,[5] and Norwegian.[6]
His book Sex and Religion: Teachings and Taboos in the History of World Faiths has been published in twelve languages: English,[7] Arabic,[8] Bulgarian,[9] Chinese,[10] Italian,[11] Macedonian,[12] Norwegian,[13] Polish,[14] Portuguese,[15] Serbian,[16] Swedish,[17] and Ukrainian.[18]
As an expert on human rights, Endsjø has published several texts[19] and also contributed to change the Norwegian equal rights legislation more in accordance with international human rights, as well as the national debate on equal rights into a general discussion of human rights.[20] In a 2023 formal report to the United Nations Human Rights Council, the United Nations Independent Expert on sexual orientation and gender identity used Endsjø’s article “The Other Way around? How Freedom of Religion May Protect LGBT Rights” as the basis for pointing out that freedom of religion also protects pro-LGBT beliefs.[21]
Endsjø has published various texts on religion and popular culture,[22] and on ancient Greek religion.[23] He writes frequently on a variety of political and popularized subjects in Norwegian media.[24]
Det folk vil ha. Religion og populærkultur (What People Want. Religion and Popular Culture) (written together with Liv Ingeborg Lied). Oslo: Universitetsforlaget 2011. ISBN978-82-15-01748-8
^Mark T. Finney Resurrection, Hell and the Afterlife. Body and Soul in Antiquity, Judaism and Early Christianity. Routledge 2016: 13-20; Outi Lehtipuu Debates Over the Resurrection of the Dead: Constructing Early Christian Identity. Oxford University Press 2015: 62-65; Zhivko Vakanski Η διδασκαλία του αποστόλου Παύλου για την ανάσταση των νεκρών στο Α ́Κορ. 15: ερμηνευτικά και θεολογικά ζητήματ Thessaloniki 2018: 34-29; Keith D. Dyer “Paul and the Embodied Resurrection. Rethinking 1. Corinthians 15” in K.D. Dyer and D.J. Neville Resurrection and Responsibility. Pickwick 2009: 149-50; Alexey Somov Representations of the Afterlife in Luke-Acts. Bloomsbury 2017: 106-7; John Granger Cook Empty Tomb, Resurrection, Apotheosis. Mohr Siebeck 2018: 411-12, 570-71; Richard C. Miller Resurrection and Reception in Early Christianity Routledge 2014:196; Jeremy Punt “Paul, body, and resurrection in an imperial setting: Considering hermeneutics and power” in Neotestamentica 45 (2011): 311-30; Candida R. Moss “Heavenly Healing: Eschatological Cleansing and the Resurrection of the Dead in the Early Church” in Journal of the American Academy of Religion 79 (2011): 196; Dennis P. Quinn: “Review of Greek Resurrection Beliefs and the Success of Christianity – By Dag Øistein Endsjø” in Religion & Theology 17 (2010), 461-64; Per Bilde: “Greek Resurrection Beliefs and the Success of Christianity. Review” in Numen 58 (2011), 134-36.
^Religion og menneskerettigheter. Konflikt, balanse og idealer. (Religion and Human Rights. Conflict, Balance and Ideals). Oslo: Universitetsforlaget 2022; “The Other Way around? How Freedom of Religion May Protect LGBT Rights”. The International Journal of Human Rights 24:10 (2020): 1681-1700; “Lesbian, Gay, Bisexual and Transgender Rights and the Religious Relativism of Human Rights”. Human Rights Review, vol. 6:2, 2005: 102-10; “Kirche und Ketzer. Wege und Abwege des Christentums” Tomas Hägg (ed.) Kirche und Ketzer. Wege und Abwege des Christentums. Böhlau Verlag 2010: 987-82; “I kjønnets grenseland. Vestens relative menneskerettighetsbegrep” in Mennesker og rettigheter. Nordic Journal for Human Rights number 4, 2001: 81-90.
^“Dag Øistein Endsjø”. Entry on Endsjø in Skeivopedia, the University of Bergen encyclopedia on Norwegian LGBT history, 2015; Berit Vegheim “Ansvaret for diskriminering” in Dagbladet 16 April 2004; Christian Bjørnes “Leder. Flukten fra ansvaret” in Blikk number 5, 2004; Erna Solberg“Rettslig vern mot diskriminering” in Dagbladet 10 February 2005; Bent Høie“Vern mot diskriminering”Archived 2015-11-19 at the Wayback Machine on Gaysir 25 February 2005; Tore Rønning “Stortingets flertall inn for generelt diskrimineringsvern“ in Norges Blinde 21 April 2005; Innstilling fra justiskomiteen om lov om endringer i straffeloven 20 May 2005 nr. 28 mv. Innst. O. nr.73 (2008–2009), 5.2 Komiteens merknader; Håkon Haugli “Slutt på forskjellsbehandling” in Klassekampen 17 March 2010; Håkon Haugli (A) at Stortinget 9 March 2010 om Innstilling fra familie- og kulturkomiteen om endringer i arbeidsmiljøloven, likestillingsloven, diskrimineringsombudsloven og diskriminerings- og tilgjengelighetsloven (Homofile og kvinner i trossamfunn m.m.) (Innst. 158 L (2009–2010); Fartein Horgar “Hellig og blasfemisk i senga” in Adresseavisen 14 December 2009; André Oktay Dahl “Mindreverdige homofile” in Klassekampen 22 April 2009; Magnus Halsnes “Inspirerande og provoserande prisvinnar“ in Institutt for arkeologi, historie, kultur- og religionsvitenskap 5 February 2013; Hilde Danielsen, Eirinn Larsen, and Ingeborg Winderen Owesen Norsk likestillingshistorie 1814-2013. Fagbokforlaget 2013; Synnøve Ressem “Endsjø fornøyd med dommen” in Universitetsavisa 24 Januar 2003; Trine Nickelsen “— Dommen er gledelig i Uniforum 27 January 2003; Nordforsk “Norge dømt i EFTA-domstol” on Nordforsk 28 January 2003.
^Det folk vil ha. Religion og populærkultur (co-written with Liv Ingeborg Lied). Universitetsforlaget 2011.
^“The Return of Alexander the Great in the Third Century A.D.: A Question of Daimones and Physical Immortality”. Classica et Mediaevalia 70 (2022): 149-79; “The Queer Periphery. Sexual Deviancy and the Cultural Understanding Of space” in Journal of Homosexuality 54 (2008): 9-20. “To Control Death. Sacrifice and Space in Classical Greece” in Religion 33 (2003): 323-340; “To Lock up Eleusis. A Question of Liminal Space” in Numen 47 (2000): 351-86; “Placing the Unplaceable. The Making of Apollonius’s Argonautic Geography” in Greek, Roman and Byzantine Studies 38 (1997): 373-85.