Abstract
This article investigates the origins, historical development, and scholarly reception of the amicus domini hypothesis, one of five main explanations proposed for how Onesimus, the slave mentioned in Paul’s letter to Philemon, came into contact with him. According to this hypothesis, Onesimus fled not as a fugitive (fugitivus) but deliberately sought out Paul – his master’s friend (amicus domini) – to intercede on his behalf. The article begins by briefly outlining the five views that have been proposed in this regard: 1. Onesimus was a fugitivus, a runaway slave (the dominant view for many centuries); 2. Onesimus sought asylum from Paul, invoking the asylum practices of antiquity; 3. Philemon or the church sent Onesimus to Paul to assist him in prison; 4. Onesimus fled to Paul hoping that he would mediate on his behalf (the amicus domini hypothesis); and 5. Onesimus was a habitual absentee (erro), not truly fleeing but drifting around before returning home. The article focuses on the fourth view, tracing how the idea predates its supposed originator, Peter Lampe.
Pre-Lampe origins
While many scholars (e.g. Camille Focant, Antonio Pitta) credit Lampe (1985) with inventing the hypothesis, the article demonstrates that the concept has much older roots: Ambrosiaster (4th century CE) speaks of Onesimus fleeing to “divine help”, a phrase suggesting a deliberate flight toward Paul. The Glossa ordinaria (12–16th centuries CE) follows Ambrosiaster, describing Onesimus as one who fled to Paul for forgiveness. Martin Luther (16th century) depicted Onesimus as a good slave who sought reconciliation through Paul. Hugo Grotius (17th century) was the first to state explicitly that Onesimus went to Paul to intercede on his behalf after making a mistake. He also compared the letter to Pliny’s letter to Sabinianus, highlighting the Roman practice of slaves seeking intermediaries after wrongdoing. Johann Albrecht Bengel (18th century) also suggested that Onesimus fled to Paul intentionally and did not meet him by accident. Throughout the 19th century, this idea remained marginal but visible: Karl Schrader proposed that Philemon drove Onesimus away, believing he was useless and beyond reform, but Onesimus then sought refuge with Paul. August Koch rejected the view that Onesimus met Paul by chance. He argued that Onesimus deliberately sought Paul out for reconciliation, knowing of Paul’s friendship with Philemon. Friedrich Bleek suggested that Onesimus had met Paul in Ephesus when Philemon was converted and deliberately sought him out in Rome. Adolf Hausrath rejected Baur’s claim that Paul may not have written Philemon, arguing the events reflected in the letter are credible if Onesimus either actively sought out Paul or was brought to him by Tychicus or Epaphras. Heinrich August Wilhelm Meyer argued that the simplest explanation for the events leading to the letter is that Onesimus was afraid of Philemon and thus fled to Paul while he was imprisoned in Caesarea. According to Erich Haupt, Onesimus may have heard from Philemon about the gospel that Paul proclaimed, according to which earthly distinctions had become irrelevant. He thus sought justice from Paul when Philemon did not treat him well.
In the 19th century, the fugitivus hypothesis remained the dominant view, though the idea that Onesimus deliberately fled to Paul was occasionally proposed. The perspectives of the following scholars are considered in this regard: Martin Dibelius, Théo Preiss, Henneke Gülzow, Liem Kniem Jang, Heinz Bellen, Peter Stuhlmacher, Roland Gayer, Alfred Suhl, and Joachim Gnilka.
Lampe’s contribution
Although Lampe was not the first to suggest that Onesimus deliberately fled to Paul, he systematised and supported this hypothesis by using a variety of Roman legal sources. Lampe argued as follows:
- Proculus states that a slave who fled to a friend of his master for mediation was not considered a fugitivus (Dig. 21.1.17.4). This fits the scenario of the letter, where Onesimus likely caused Philemon harm and sought an intermediary, something common in Roman practice, as shown in legal texts and private letters.
- Roman legal sources like Proculus, Vivianus, and Paulus confirm that slaves leaving their owners to seek mediation were not regarded as fugitivi. Onesimus likely did the same, as the letter suggests that he did not flee with intent to escape. While it is unclear how such cases were treated under local law in Asia Minor, Roman legal texts show no alternative approach.
- The jurist Paulus (Dig. 21.1.43.1) refers to a slave fleeing to a friend of his master – a scenario reflected in Philemon and Pliny’s letter. Onesimus likely sought Paul not to escape, but to mediate after a mistake. Though not yet a Christian, he was converted by Paul, unlike under Philemon. Paul’s offer to repay the loss shows Onesimus was not a fugitivus, making speculations regarding possible ways of punishment irrelevant.
Reaction to Lampe’s hypothesis
Lampe’s hypothesis gained widespread traction because it explained how Onesimus met Paul without invoking chance or capture. Some examples: Brian Rapske supported it by referring to examples like Augustus protecting a slave from execution. Alex Hon Ho Ip noted its coherence with the letter’s tone and rhetoric. Bruce J. Nicholls and Brian C. Wintle and Ryan Lokkesmoe offered variants of the hypothesis, suggesting either prior permission from Philemon or a shift in Onesimus’s intentions after his flight. However, not all scholars agree with Lampe’s proposals. The article highlights several points of critique: Stephen R. Llewelyn argues that the letter lacks clear markers of remorse or explicit appeals, unlike Pliny’s letter to Sabinianus. He also questions whether Roman law was applicable in Colossae, a non-Roman colony. J. Albert Harrill asserts that Roman law was inconsistently applied, especially in provinces. The Digest reflects idealised legal hypotheses, not everyday judicial outcomes. He further argues that Roman jurists were academic thinkers, not legal practitioners, and that Roman law coexisted with Greek and local customs. Richard Gamauf points out that Lampe’s argument depends on assumptions not directly supported by the letter, such as why Onesimus fled and how much Paul knew about Roman slave law. Alan H. Cadwallader raises a significant concern: Roman law was never uniformly applied across the empire, particularly in Asia Minor. Local legal customs frequently overrode Roman norms. Once Onesimus left Colossae, legal debates about whether he was a fugitivus became irrelevant. What mattered was his practical status as a missing slave.
The article also refers to several ancient texts that have been identified by scholars as relevant for the background of the letter: Pliny the Younger’s letter to Sabinianus, Donatus’s commentary on Phormio (about a slave seeking a mediator), Chrysostom’s Adversus Judaeos, which refers to slaves seeking friends of their master when in trouble, a letter from Isidore of Pelusium, pleading for a slave’s forgiveness, and a letter from the priest Kaor to the Christian officer Flavius Abinnaeus, asking for leniency for a deserting soldier. Such texts show that appealing to a trusted intermediary was common practice in Roman and early Christian society, not a rare or unusual event.
The article concludes that although Peter Lampe refined and popularised the amicus domini hypothesis, he did not invent it. Lampe’s success lay in articulating the hypothesis clearly, grounding it in legal precedent, and offering a simple, coherent explanation for Onesimus’s presence with Paul.
The strength of the hypothesis lies in its ability to answer the central historical question of how Onesimus reached Paul – more simply and plausibly than rival theories (e.g. asylum seeking, accidental meeting, or being sent by the church). While the hypothesis is not without weaknesses – especially regarding legal consistency across the Roman Empire – it reflects a real social and rhetorical pattern in antiquity. In the end, the amicus domini hypothesis remains compelling because it aligns with known practices of mediation and conflict resolution in Roman society when slaves were involved. Even if Onesimus, Paul, and Philemon were not fully aware of all the legal nuances, the logic of appealing to a friend of the master for help makes good sense.
Keywords: amicus domini hypothesis; introductory issues; Letter to Philemon; Onesimus; Paul
- This article’s featured image was created by Kindel Media and obtained from Pexels.
Lees die volledige artikel in Afrikaans
Die ontstaan en ontwikkeling van die amicus domini-teorie in die Filemonbriefnavorsing