I Paul have written it with mine own hand - It is likely that the whole of the letter was written by St. Paul himself, which was not his usual custom. See on 2 Thessalonians 3:17; (note). But by thus speaking he bound Philemon to do what he requested, as an act of common civility, if he could not feel a higher motive from what he had already urged.
Albeit I do not say to thee how thou owest unto me - I ask thee to do this thing to oblige me, though I will not say how much thou owest unto me; even thine own self, as having been the means of thy conversion.
I Paul have written it with mine own hand - It has been inferred from this, that Paul wrote this entire Epistle with his own hand, though this was contrary to his usual practice; compare the Romans 16:22 note; 1 Corinthians 16:21 note; Galatians 6:11 note. He undoubtedly meant to refer to this as a mark of special favor toward Philemon, and as furnishing security that he would certainly be bound for what he had promised.
I will repay it - I will be security for it. It is not probable that Paul supposed that Philemon would rigidly exact it from him, but if he did, he would feel himself bound to pay it.
Albeit I do not say to thee how thou owest unto me even thine own self besides - Paul had doubtless been the means of the conversion of Philemon, and whatever hope he cherished of eternal life, was to be traced to his instrumentality. Paul says that this was equivalent to his owing himself to him. His very life - his eternal welfare - was to be traced to his labors. What he asked now of him was a small matter compared with this, and he seems to have supposed - what was probably true - that for this consideration, Philemon would not think of exacting of him what he had voluntarily obligated himself to obey.