In his letter to Philemon, Paul writes about a certain man named Onesimus, who apparently was Philemon's slave and...
In his letter to Philemon, Paul writes about a certain man named Onesimus, who apparently was Philemon's slave and whom Paul is now returning to his master no longer as a slave, but as a brother in Christ (vv. 15–16). Apparently, before his conversion Onesimus was not a particularly conscientious man, but after turning to Christ through the apostle's preaching, he changed completely; Paul himself calls him his “son,” in the spiritual sense, of course (vv. 10–12). Such an attitude toward slaves was, of course, shaped above all by the requirements of the Torah, which prohibits lifelong slavery and requires a slave to be treated as an equal. This differed from the norms of the Greco-Roman world, where a slave was often not regarded as a human being at all, but merely, in Aristotle's phrase, as a “speaking tool,” something like talking livestock. Of course, the Torah's rules concerning slaves originally applied only to Hebrew slaves, but even before Christ came into the world, some Jewish households began treating all the slaves in their homes accordingly, regardless of their origin.
For Paul, it was obvious that every slave was not only as human as anyone else, but also a potential Christian to whom one could and should bear witness as a first priority: after all, it is the master who is answerable to God for his slaves' way of life. If a slave has converted and become a Christian, one's relationship with him must be built not on the laws of our as yet untransfigured world, but on those of the Kingdom; this is what Paul writes to Philemon. When he speaks of receiving Onesimus “not as a slave, but more than a slave, as a beloved brother” (v. 16), Paul means a spiritual rather than a social reality. Under the laws of the society in which Philemon and Onesimus both live, the latter remains the former's slave; under the laws of the Kingdom, where relations of domination and subordination have no place, they are brothers, equal before God. It depends on them alone which laws these two will follow in their relationship from now on: those of the untransfigured world or those of the Kingdom.
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1:7 The saints - To whom Philemon's house was open, Pmn 1:2.