The 258th Letter to Philemon 6
Various interpretations exist regarding what Paul desired of Philemon: forgiving Onesimus, freeing him from slavery, or making him a disciple and missionary under Paul. Some view Paul as seeing the gospel as driving a wedge into the social structure of slavery, which was commonplace at the time.
According to Colossians 4:9, even if the letter is considered apocryphal, Onesimus likely became a minister in Paul's circle afterward. Ignatius of Antioch, an early 2nd-century bishop of Ephesus, mentions a person named Onesimus, but since Onesimus was a common slave name, it is difficult to definitively identify him as the same person. On the other hand, there is a theory that Onesimus, the Bishop of Ephesus, later collected the Pauline epistles and placed this letter at the end of the collection. Furthermore, Harrison and others consider Onesimus to be the author of the Epistle to the Ephesians.