I Paul have written it with my own hand, I will repay it: albeit I do not say to you how you owe to me even your own self besides.
It does not follow from this sentence that the whole Epistle was written with the apostle's own hand; rather it would seem that he made this engagement of repayment to be more emphatic and significant by distinguishing it from the rest of the Epistle, and by taking the pen from the hand of his secretary, and by inditing that particular clause with his own autograph, well known to Philemon.
(Bp. Chris. Wordsworth.)
Parallel VersesKJV: I Paul have written it with mine own hand, I will repay it: albeit I do not say to thee how thou owest unto me even thine own self besides.