The apostle Paul lived and ministered within the vast expanse of the Roman Empire, a society permeated by the institution of slavery. To understand Paul’s teachings, we must first grasp Roman slavery, which differed from the indentured servitude or debt-slavery of the Old Testament Law. Roman society depended heavily on slave labour, enslaved people forming a large share of the population. Slaves were considered property, chattels with no legal rights, subject entirely to the will of their masters. Their origins were varied: captives of war, children sold by impoverished parents, those born into slavery, or individuals who sold themselves into bondage to pay debts. While some slaves endured brutal conditions in mines or galleys, others, particularly household slaves, might hold positions of significant responsibility as tutors, administrators, or skilled artisans. Yet whatever their station, their lives were precarious and their personhood was often disregarded in Roman law.

Old Testament Precedents and Roman Contrasts

Before delving into Paul’s epistles, it is crucial to distinguish Roman slavery from the forms of servitude permitted under the Mosaic Law. Servitude among Israelites under the Law was largely debt service with release and protection, unlike the chattel slavery prevalent in Rome, where individuals were bought and sold as mere property for life. The Law did let Israel buy bondmen “of the heathen that are round about you” as a lasting possession (Leviticus 25:44-46), yet every servant was protected from maiming (Exodus 21:26-27). Among their own people, Hebrew servitude often functioned as a form of debt payment or temporary indentured labour, with specific protections and limitations:

  • Limited Duration: Hebrew servants were to be released after six years of service in the seventh year (Exodus 21:2).
  • Protection Against Harm: The Law provided severe penalties for masters who physically abused their servants, even resulting in freedom if an eye or tooth was lost (Exodus 21:26-27). A master who struck a servant fatally was to be surely punished (Exodus 21:20).
  • Asylum for Runaways: Unlike Roman law, the Mosaic Law forbade the return of a runaway servant to his master, commanding kindness instead (Deuteronomy 23:15-16).
  • Year of Jubilee: Every fifty years, all land returned to its original families, and all Hebrew bondservants were set free (Leviticus 25:39-41).

These regulations reveal a stark contrast to Roman slavery, emphasizing the dignity of the individual and providing avenues for freedom and protection, rooted in the understanding that all Israelites were God’s servants, delivered from Egyptian bondage.

Paul’s Instructions to Bondservants and Masters

Paul, writing to fledgling Christian communities within the Roman Empire, did not call directly for the abolition of slavery. His approach struck at the heart of the master-slave relationship instead, transforming it through the gospel. Paul’s primary focus was on the internal transformation of believers and their conduct within existing social structures, thereby teaching masters and servants alike that they had one Master in heaven (Ephesians 6:9).

To both bondservants and masters, Paul issued instructions, elevating their roles to service unto Christ:

  • For Bondservants: Paul exhorted slaves to obey their earthly masters, not with eye-service as menpleasers, but as serving Christ with a sincere heart. This was a radical reorientation of their labour, turning forced servitude into an act of worship.

    Servants, be obedient to them that are your masters according to the flesh, with fear and trembling, in singleness of your heart, as unto Christ; Not with eyeservice, as menpleasers; but as the servants of Christ, doing the will of God from the heart; With good will doing service, as to the Lord, and not to men: Knowing that whatsoever good thing any man doeth, the same shall he receive of the Lord, whether he be bond or free.

    Ephesians 6:5-8
    KJV

    Similar admonitions are found in Colossians 3:22-25 and Titus 2:9-10. Notably, in 1 Corinthians 7:21, Paul advises slaves that if they have the opportunity to be free, they should seize it, indicating that freedom is preferable.

  • For Masters: Paul commanded masters to treat their bondservants justly and fairly, remembering that they too have a Master in heaven who shows no partiality. This directly challenged the Roman legal understanding of slaves as mere property.

    And, ye masters, do the same things unto them, forbearing threatening: knowing that your Master also is in heaven; neither is there respect of persons with him.

    Ephesians 6:9
    KJV

    And in Colossians 4:1, Paul states, “Masters, give unto your servants that which is just and equal; knowing that ye also have a Master in heaven.” This injunction for justice and equity demanded that masters view their slaves not as objects but as fellow human beings under the same divine authority.

    The Radical Equality in Christ

    Central to Paul’s theology, and impactful on the issue of slavery, was his declaration of spiritual equality in Christ. In the church, social distinctions, including that of slave and free, were dissolved in the eyes of God.

    There is neither Jew nor Greek, there is neither bond nor free, there is neither male nor female: for ye are all one in Christ Jesus.

    Galatians 3:28
    KJV

    This spiritual reality meant that a Christian master and a Christian slave were brothers or sisters in Christ, equal recipients of God’s grace. This truth, when lived out, inherently undermined the hierarchical and dehumanizing nature of slavery. While not abolishing the legal status, it transformed the relational dynamic. A master was obligated to love, respect, and care for a fellow believer who happened to be his slave, as he would any other brother in Christ. Conversely, a slave was to serve, knowing his ultimate service was to God, and his master was also accountable to God.

    The Case of Onesimus and Philemon

    The Epistle to Philemon gives a practical illustration of Paul’s teachings on slavery. Onesimus, a slave of Philemon, a Christian brother, had been parted from him (Philemon 1:15) and became Paul’s son in the faith while Paul was in bonds (Philemon 1:10). Paul, rather than harbouring Onesimus, sent him back to Philemon, but with a letter asking Philemon to receive him as a brother beloved.

    If he hath wronged thee, or oweth thee ought, put that on mine account; I Paul have written it with mine own hand, I will repay it: albeit I do not say to thee how thou owest unto me even thine own self besides.

    Philemon 1:18-19
    KJV

    Paul appeals to Philemon not to punish Onesimus, but to receive him back “not now as a servant, but above a servant, a brother beloved” (Philemon 1:16). This was a revolutionary request. Paul was asking Philemon to welcome back his slave not as property to be disciplined, but as a spiritual equal, a beloved brother in Christ; the letter does not say whether Philemon freed him. Paul even offers to pay any debt Onesimus incurred. This epistle beautifully demonstrates how the gospel, without issuing a direct legislative ban, transformed relationships from within, making the continuation of chattel slavery morally untenable for believers.

    Conclusion: The Seeds of Abolition

    Paul’s approach to slavery was spiritual transformation rather than immediate social upheaval. He did not call for slave revolts, which would have been suicidal for early Christians and counterproductive to the spread of the gospel. Instead, he introduced principles that, over time, would fundamentally undermine the institution of slavery. By emphasizing the spiritual equality of all believers before God, by commanding masters to treat slaves with justice and equity, and by urging slaves to serve as unto Christ, Paul planted the seeds of abolition within the fabric of the Christian community. The Christian worldview, which insists on the inherent dignity and value of every human being as created in God’s image and redeemed by Christ, ultimately proved incompatible with the dehumanizing practice of chattel slavery. While the full societal implications took centuries to unfold, Paul’s teachings provided the theological and moral framework that would eventually lead to the demise of slavery wherever Christian influence took root. His writings compel us to recognize that true freedom and justice begin not with external decrees alone, but with the internal transformation of hearts by the power of the gospel of Jesus Christ.