Analysis of information sources in references of the Wikipedia article "Onesimus" in English language version.
For perhaps [Onesimus] was for this reason separated from you for a while, that you would have him back forever, no longer as a slave, but more than a slave, a beloved brother, especially to me, but how much more to you, both in the flesh and in the Lord.(NASB)
... Onesimus, whose love surpasses words, in the flesh as your bishop. I pray that you may love him with a love according to Jesus Christ, and that you may all be like him. For blessed is He Who granted unto you, worthy as you are, to possess such a bishop.(chapter 1)