Jamieson, Fausset and Brown on Philemon 1:10

10. I beseech thee--emphatically repeated from Phm 9. In the Greek, the name "Onesimus" is skilfully put last, he puts first a favorable description of him before he mentions the name that had fallen into so bad repute with Philemon. "I beseech thee for my son, whom I have begotten in my bonds, Onesimus." Scripture does not sanction slavery, but at the same time does not begin a political crusade against it. It sets forth principles of love to our fellow men which were sure (as they have done) in due time to undermine and overthrow it, without violently convulsing the then existing political fabric, by stirring up slaves against their masters.