"See the Apostle's wisdom! How little by little he set the servant in the master's place!" add Oecumenius and Theophylact.
Yet the Apostle did not intend by these words only to assure Philemon of Onesimus's reliability. Besides this, he had in mind to dispose Philemon to meet him with a certain respect, as one who had rendered service to Paul himself.
Philemon was obliged to serve the Apostle as a disciple serves a teacher, and no doubt he knew this obligation. Suppose that, from strong love for St. Paul, he yearned to serve him.
Suppose also that, not being able to fulfill this desire, he grieved over it. Then we cannot fail to agree that it was very pleasant for him to hear that his servant, even though once useless and even apart from his will and arrangement, had served the Apostle in his place.
In itself this circumstance is not of great value. Yet what was dear to him was that St. Paul himself viewed this service in precisely this way, though it lasted only from Onesimus's conversion until his departure.
After this, it was natural for him to meet Onesimus as one who had rendered him a service.
St. Chrysostom says: "Do you see how many arguments he uses beforehand, so as later to inspire the master with respect for him? See with what wisdom he does this also.
See how he obliges the one and gives honor to the other. You see, he says, that through him you yourself render service to me."
Blessed Theophylact carries the same suggestion further: "If you are obliged to serve me, and he does this in your place, then this is plainly gain for you."