Philemon 1:12 Meaning

10I beseech thee for my son Onesimus, whom I have begotten in my bonds:

11Which in time past was to thee unprofitable, but now profitable to thee and to me:

12Whom I have sent again: thou therefore receive him, that is, mine own bowels:

13Whom I would have retained with me, that in thy stead he might have ministered unto me in the bonds of the gospel:

14But without thy mind would I do nothing; that thy benefit should not be as it were of necessity, but willingly.