Onesimus

Onesimus is a figure prominently featured in the New Testament, primarily known as the subject of the Apostle Paul's Epistle to Philemon. His name, derived from Ancient Greek (Ὀνήσιμος), translates to "useful," a meaning that Paul masterfully employs in his letter.

In the New Testament

The biblical account of Onesimus begins with him as a runaway slave to a Christian named Philemon. Fleeing punishment for theft, Onesimus found himself where Paul was imprisoned, likely in Rome or Caesarea Maritima. There, Onesimus heard the Gospel from Paul and experienced a profound conversion to Christianity. Paul, who had previously converted Philemon, saw in Onesimus a spiritual son and sought to facilitate a reconciliation between the two men. The Epistle to Philemon, a short but theologically rich letter, is Paul's appeal to Philemon to receive Onesimus back with love and forgiveness, no longer as a slave but as a "beloved brother."

Paul's wordplay on the name Onesimus is evident when he contrasts the slave's former "uselessness" (ἄχρηστος) with his new "usefulness" (εὔχρηστος) to both Philemon and Paul. Furthermore, Paul uses a rare verbal form (ὀνίνημι) related to Onesimus's name in an exclamation to Philemon, expressing his desire to "gain some use" from him, signifying Onesimus's newfound value and service.

Onesimus is also mentioned in the Epistle to the Colossians (4:9) as a "faithful and beloved brother" accompanying Tychicus to visit the Christians in Colossae. It is plausible that this Onesimus is the same individual freed from slavery.

In Tradition

Beyond the New Testament accounts, Christian tradition offers further developments of Onesimus's life. Ignatius of Antioch, writing around the early 2nd century, mentions an Onesimus who served as the bishop of Ephesus. If this is the same Onesimus, his journey would have been from slave to brother to bishop. Tradition also suggests that Onesimus may have suffered martyrdom, with some sources indicating death by stoning or beheading. The Apostolic Constitutions (4th century) identify Onesimus as the first bishop of Beroea in Macedonia. Eastern Orthodox tradition also lists an Onesimus as the third bishop of Byzantium, though scholarly skepticism exists regarding the early episcopacy of Byzantium.

Veneration

Onesimus is recognized as a saint by various Christian denominations. The Catholic Church traditionally commemorates him on February 16, though the Roman Martyrology lists him on February 15. The Eastern Orthodox Church observes his feast on February 15 as a primary day, with other commemorations on January 4, July 6, and November 22. Lutheran Churches, such as the Lutheran Church–Missouri Synod, also commemorate him and Philemon on February 15.