I beseech thee for my son. Since less weight is commonly attached to those prayers which are not founded in some cause of just commendation, Paul shows that Onesimus is so closely related to him as to afford a good reason for supplicating in his behalf. Here it is of importance to consider how deep is his condescension, when he gives the name of "son" to a slave, and a runaway, and a thief. When he says that Onesimus has been begotten by him this must be understood to mean, that it was done by his ministry, and not by his power. To renew a soul of man and form it anew to the image of God -- is not a human work, and it is of this spiritual regeneration that he now speaks. Yet because the soul is regenerated by faith, and "faith is by hearing," (Romans 10:17,) on that, account he who administers the doctrine holds the place of a parent. Moreover, because the word of God preached by man is the seed of eternal life, we need not wonder that he from whose mouth we receive that seed is called a father. Yet, at the same time, we must believe that, while the ministry of a man is efficacious in regenerating the soul, yet, strictly speaking, God himself regenerates by the power of his Spirit. These modes of expression, therefore, do not imply any opposition between God and man, but only show what God does by means of men. When he says that he had begotten him in his bonds, this circumstance adds weight to the commendation.

I beseech thee for my son Onesimus - That is, my son in the gospel; one to whom I sustain the relation of a spiritual father; compare the notes at 1-Timothy 1:2. The address and tact of Paul here are worthy of particular observation. Any other mode of bringing the case before the mind of Philemon might have repelled him. If he had simply said, "I beseech thee for Onesimus;" or, "I beseech thee for thy servant Onesimus," he would at once have reverted to his former conduct, and remembered all his ingratitude and disobedience. But the phrase "my son," makes the way easy for the mention of his name, for he had already found the way to his heart before his eye lighted on his name, by the mention of the relation which he sustained to himself. Who could refuse to such a man as Paul - a laborious servant of Christ - an aged man, exhausted with his many sufferings and toils - and a prisoner - a request which he made for one whom he regarded as his son? It may be added, that the delicate address of the apostle in introducing the subject, is better seen in the original than in our translation. In the original, the name Onesimus is reserved to come in last in the sentence. The order of the Greek is this: "I entreat thee concerning a son of mine, whom I have begotten in my bonds - Onesimus." Here the name is not suggested, until he had mentioned that he sustained to him the relation of a son, and also until he had added that his conversion was the fruit of his labors while he was a prisoner. Then, when the name of Onesimus is mentioned, it would occur to Philemon not primarily as the name of an ungrateful and disobedient servant, but as the interesting case of one converted by the labors of his own friend in prison. Was there ever more delicacy evinced in preparing the way for disarming one of prejudice, and carrying an appeal to his heart?
Whom I have begotten in my bonds - Who has been converted by my efforts while I have been a prisoner. On the phrase "whom I have begotten," see 1-Corinthians 4:15. Nothing is said of the way in which he had become acquainted with Onesimus, or why he had put himself under the teaching of Paul; see the introduction, Section 2. See (3) below.

I beseech thee for my son Onesimus - It is evident from this that Onesimus was converted by St. Paul while he was prisoner at Rome, and perhaps not long before he wrote this epistle.

I beseech thee for my son Onesimus,.... Now he comes to the request itself, and mentions by name the person on whose account he makes it, and whom he calls his son; not merely because of his affection to him, but because he really was his spiritual father; he had been the happy instrument of his conversion, and he was his son according to the common faith, or in a spiritual sense: hence it follows,
whom I have begotten in my bonds: which is to be understood of a begetting again, or of regeneration; not as if the apostle was the efficient cause of it, as the nature of it shows, it being expressed by men's being born from above; by their being quickened, when dead in trespasses and sins; by being made new creatures, and transformed in the renewing of their minds; by Christ being formed in them, and by a partaking of the divine nature; and who is sufficient for these things? besides it is expressly denied to be of man, but is always ascribed to God, Father, Son, and Spirit; but as being the instrument and means of it, through the preaching of the Gospel, the word of truth, by which God of his own will, and by the power of his grace, regenerated this person; and this is said to be done "in his bonds": by which it appears, that the word of God was not bound, but had a free course, and was glorified, and the bonds of the apostle were the means of the spread of it; and that it was attended with great power, to the conversion of souls: and this circumstance is mentioned to engage Philemon to regard the entreaty of the apostle; he had been the instrument of begetting many souls to Christ; but this man was begotten by him in his bonds, when he was a prisoner, and so was peculiarly dear to him.

I beseech thee--emphatically repeated from Plm 1:9. 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.

Whom I have begotten in my bonds - The son of my age.