Matthew Poole and continuators on Philemon 1:9

9 Yet for loves sake I rather beseech thee, being such a one as Paul the aged , and now also a prisoner of Jesus Christ .

Writing to thee in a cause of Love, where so good, and charitable a man may have an opportunity to express his charity. Or rather, out of my Love and Kindness to thee, perswading me that I need not use my Apostolical authority to such a brother, and friend I beseech thee

being such a one as Paul now much in years, and not like to trouble thee long with any request. Or Paul the Elder by office, one who is thy brother in the Ministry.

And now a Prisoner for Christs sake, and so cannot personally speak to thee, and I know such is thy piety, that my being a sufferer for the sake of Christ, will not render my petition to thee less acceptable or to be regarded less.