MartyrPre-Nicene

Martyr Onesimus of Isauria

1st century (Pre-Nicene era)

Also known as Onesimus

A martyr beheaded by the sword for confessing his faith in Christ.

March 5New Calendar

Feast Day

March 18Old Calendar

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Commemorated as

The Holy Martyr Onesimus of Isauria

Life

Onesimus of Isauria is an early Christian martyr commemorated in the Eastern Orthodox calendar on March 5. According to the synaxarion tradition he lived in Palestine and was beheaded with the sword for confessing his faith in Christ.

The surviving record of his life is minimal. He is identified by the epithet "of Isauria" — a mountainous region of southern Asia Minor — while the synaxarion places him in Palestine, a pattern consistent with Isaurian Christians who lived or traveled in the Holy Land during the apostolic and immediately post-apostolic period. His name is also attested in the alternate spelling Onisius.

Kontakion & Troparion2 hymnsReadHide

KontakionTone 2

(Podoben: “You sought the heights...”) You appeared as a bright star announcing Christ with your radiance,
which is repulsive to this world, O Martyr Onesimus;
extinguishing the allure of false gods,
you enlighten the faithful,
always interceding for us all.

Text used with permission of the Orthodox Church in America (oca.org).

TroparionTone 4

Your holy martyr Onesimus, O Lord,
through his sufferings has received an incorruptible crown from You, our God.
For having Your strength, he laid low his adversaries,
and shattered the powerless boldness of demons.
Through his intercessions, save our souls!

Text used with permission of the Orthodox Church in America (oca.org).

Contributions & Legacy

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Martyrdom and Commemoration

The synaxarion records only that Onesimus was beheaded with the sword for confessing Christ. No detailed account of his trial, persecutors, or the circumstances of his death survives. The Orthodox liturgical calendar dates his martyrdom to the 1st century, placing it in the apostolic or sub-apostolic era before the persecutions were formally systematized.

He is commemorated on March 5 alongside a cluster of early martyrs. These include Martyr Conon of Isauria and Martyr Nestor — fellow Isaurians — as well as several Palestinian martyrs such as Conon the Gardener of Pamphylia, Eulogius of Palestine, and Eulampius of Palestine. This grouping reflects the regional character of his veneration within the Pre-Nicene tradition.

Regional Context

Isauria, the region from which Onesimus takes his epithet, had Christian roots reaching back to the apostolic age. The Apostle Paul evangelized in Claudiopolis, the region's only Roman colony at the time, and the local church originally fell under the jurisdiction of the Patriarch of Antioch before its transfer to Constantinople in the late 7th or early 8th century.

Archaeological survey of the region by W. M. Ramsay uncovered more than fifty Greek inscriptions, the majority of them Christian and dating from the 3rd through 5th centuries, evidence of an active Christian community present from the apostolic period onward — the kind of community that produced martyrs during the early persecutions.

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Sources: OCA Synaxarion (oca.org), Lives of the Saints