The Eastern Mission Traditions

Before and beyond the India narrative of the Acts of Thomas stands a broader and partly earlier tradition assigning to Thomas the evangelization of the lands east of the Roman frontier — Parthia, Persia, Media, and India. This file gathers those strands: the earliest notice (Parthia, from Origen via Eusebius), the later patristic and Syriac notices (Rufinus, the Doctrine of the Apostles, the Edessene tradition), and the question of how Parthia, Persia, and India relate as stages or variants of a single eastern apostolate.

Tradition: Pan-Orthodox (Apostle)

The Earliest Notice: Parthia

The oldest surviving patristic statement about Thomas’s mission field assigns him not India but Parthia. Eusebius of Caesarea, writing his Ecclesiastical History in the early fourth century, quotes the third-century Alexandrian Origen for the apostolic allotment of the world: “Thomas, as the tradition relates, obtained by lot Parthia” (Parthian — Thōmas… tēn Parthian), while Andrew received Scythia, John Asia, and Peter the regions of Pontus and finally Rome (Origen, in Eusebius, Ecclesiastical History 3.1.1; trans. NPNF II/1). This is the earliest datable testimony, and it is sober: a bare notice of the mission field, with no narrative, embedded in an account Eusebius attributes to “tradition” (paradosis). Parthia — the great Iranian empire east of the Euphrates, embracing Persia and Media and bordering on India — is the natural designation of the whole eastern mission as seen from the Roman world, and it is fully compatible with a mission that reached, or ended in, India (Mundadan 1984; Klijn 2003).

The Syriac and Edessene Strand

The Syriac-speaking Church of Mesopotamia, centered on Edessa, claimed a special connection to Thomas, and several of its early traditions name him as the apostle of the East. The Doctrine of the Apostles (Didascalia Apostolorum in the Syriac sense), and the related Edessene legends, link Thomas to the evangelization of “India” and the East, and the Edessene Church honored his relics (see The Relics and Edessa). The closely related Doctrine of Addai (the legend of Abgar of Edessa) has the apostle Thomas sending Addai (Thaddaeus) to Edessa — making Thomas the apostolic source of the Edessene mission even where he did not go in person (Mundadan 1984; the Doctrine of Addai, trans. Howard). These traditions are themselves legendary in form and late in attestation, but together they show that the Syriac Church, which lay astride the route eastward, consistently remembered Thomas as the apostle who carried the Gospel into the Iranian and Indian East — a memory of the first importance, since it is the Syriac Church that would actually evangelize Persia and India in later centuries (see St. Isaac the Syrian).

Rufinus, Gregory of Tours, and the Western Notices

By the late fourth and the fifth century the India tradition had spread in the West. Rufinus of Aquileia, continuing and translating Eusebius (early fifth century), and the church historians Socrates and Sozomen distinguish the mission fields and associate Thomas with Parthia and the East, while reports of a Christian “India” (sometimes meaning South Arabia or Ethiopia, sometimes the subcontinent) multiply (Mundadan 1984; on the elasticity of “India,” see The Mission to India). Later, Gregory of Tours (sixth century), in his Glory of the Martyrs, reports that the body of Thomas had first lain in India before being translated to Edessa, and describes the shrine and the pilgrimage — a western witness to the established belief that Thomas died in India and that his relics journeyed west (Gregory of Tours, Glory of the Martyrs 31–32; trans. Van Dam; cited in Medlycott 1905). These notices do not add independent first-century evidence, but they show the tradition’s reach and consistency: from the fourth century onward, East and West alike remembered Thomas as the apostle of Parthia and India.

Parthia, Persia, India: One Mission or Many?

The sources thus present a spread of eastern destinations — Parthia (Origen), Persia and Media (implied in the Parthian empire), and India (the Acts, the Syriac and Indian traditions) — and the relation among them is a genuine question. Several positions are held. One reads them as stages of a single eastward apostolate: Thomas labored first in Parthia/Persia and then passed on to India, so that Origen’s “Parthia” and the Acts’ “India” name different reaches of one mission (Mundadan 1984; Medlycott 1905). A second reads “Parthia” and “India” as alternative designations of the same broad eastern field, “India” in the loose ancient sense overlapping the Parthian and Indo-Parthian lands (the Gundaphar of the Acts was, after all, an Indo-Parthian king; see The Mission to India). A third, more skeptical, treats the multiplication of destinations as legendary accretion, the apostle’s name drawn to ever more distant lands as the tradition grew (assessed in The India Mission Assessed). The honest position is that the earliest notice (Parthia) and the fuller tradition (India) are not contradictory — the Indo-Parthian world joins them — but that the sources do not allow a confident reconstruction of the apostle’s actual itinerary (Mundadan 1984; Klijn 2003).

The Weight of the Strands

Set side by side, the strands have very different evidential weight. Origen’s Parthia notice (c. early third century, via Eusebius) is the earliest and soberest, but it is bare. The Acts of Thomas (third century) is fuller but apocryphal and encratite. The Syriac and Edessene traditions are early in their milieu but legendary in form. The living Indian Church (Section 05) supplies a continuity no text can, but its own records of the apostolic origin are late and oral. The convergence of these independent strands on an eastern — and specifically Indian — apostolate is the strongest argument for a historical kernel; the weakness of each strand individually is the strongest argument for caution. The collection holds both: the eastern mission of Thomas is the Church’s firm tradition, attested from Origen onward; its precise course and the question of a historical core are matters this guide presents as a live debate rather than a settled fact (see The India Mission Assessed).

See Also

References

  • Eusebius of Caesarea. The Ecclesiastical History 3.1.1. Trans. NPNF II/1. (Origen on Thomas and Parthia.)
  • Gregory of Tours. Glory of the Martyrs 31–32. Trans. Raymond Van Dam. Liverpool: Liverpool University Press, 1988. (Thomas’s tomb in India and the translation to Edessa.)
  • The Doctrine of Addai, the Apostle. Trans. George Howard. Chico: Scholars Press, 1981. (Thomas sending Addai to Edessa.)
  • Mundadan, A. Mathias. History of Christianity in India, Vol. I. Bangalore: Church History Association of India, 1984. (The eastern traditions and their relation.)
  • Medlycott, A. E. India and the Apostle Thomas. London: David Nutt, 1905. (The patristic notices and the relic-translation.)
  • Klijn, A. F. J. The Acts of Thomas: Introduction, Text, and Commentary. 2nd rev. ed. Leiden: Brill, 2003.