Philemon 1:15

Then when he says, Perhaps, indeed..., he gives the reason why he ought to receive him kindly, first, on the side of God, second, on the side of the Apostle: If therefore you count me as a partner...; third, on the part of Philemon himself: …

Since Onesimus ran away with evil intent, Paul turns this flight into something beneficial. Perhaps, he says, he ran away by the providence of God. He also commendably calls the flight a separation, so as not to irritate the master with the word "flight." And …

(2.) How tenderly still the sins of penitents are spoken of; he calls it a departure for a season, instead of giving it the term that it deserved. As overruled and ordered by God, it was a departure; but in itself, and in respect of the disposition and manner of the act, it was a criminal going away.

For perhaps he therefore departed for a season,....

For perhaps he therefore departed for a season - Perhaps on this account, or for this reason - διὰ τοῦτο dia touto - he left you for a little time. Greek, “for an hour” - πρὸς ὥραν pros hōran. The meaning is, that it was possible that this was permitted in the Providence of God in order that Onesimus might be brought under the influence of the gospel, and be far more serviceable to Philemon as a Christian, than he could have been in his former relation to him.

So Joseph in Ge 45:5. departed--literally, "was parted from thee"; a softening term for "ran away," to mitigate Philemon's wrath. receive him--Greek, "have him for thyself in full possession" (see on Php 4:18). The same Greek as in Mt 6:2. for ever--in this life and in that to come (compare Ex 21:6).

NATURE is selfish but Grace is loving. He who boasts that he cares for nobody and nobody cares for him, is the reverse of a Christian, for Jesus Christ enlarges the heart when He cleanses it. None so tender and sympathetic as our Master and if we are truly His disciples, the same mind will be in us which was also in Christ Jesus. The Apostle Paul was eminently large-hearted and sympathetic. Surely he had enough to do at Rome to bear his own troubles and to preach the Gospel.

NATURE is selfish but Grace is loving. He who boasts that he cares for nobody and nobody cares for him, is the reverse of a Christian, for Jesus Christ enlarges the heart when He cleanses it. None so tender and sympathetic as our Master and if we are truly His disciples, the same mind will be in us which was also in Christ Jesus. The Apostle Paul was eminently large-hearted and sympathetic. Surely he had enough to do at Rome to bear his own troubles and to preach the Gospel. If, like the priest in the parable of the good Samaritan, he had, "passed by on the other side," he might have been excused, for he was on the urgent business of that Master who once said to His 70 messengers, "Salute no man by the way." We might not have wondered if Paul had said, "I cannot find time to attend to the needs of a runaway slave." But Paul was not of that mind. He had been preaching and Onesimus had been converted—and from now on he regarded him as his own son. I do not know why Onesimus came to Paul. Perhaps he went to him as a great many scapegraces have come to me—because their fathers knew me. And so, as Onesimus' master had known Paul, the servant applied to his master's friend, perhaps to beg some little help in his extremity. Anyway, Paul seized the opportunity and preached Jesus to him and the runaway slave became a Believer in the Lord Jesus Christ! Paul watched him, admired the character of his convert and was glad to be served by him. And when Paul thought it right that he should return to his master, Philemon, he took a deal of trouble to compose a letter of apology for him, a letter which shows long thinking, since every word is well selected. Although the Holy Spirit dictated it, Inspiration does not prevent a man's exercising thought and care on what he writes. Every word is chosen for a purpose.

He - departed for a season - This is another most delicate stroke. He departed thy slave, thy unfaithful slave; he departed for a short time; but so has the mercy of God operated in his behalf, and the providence of God in thine, that he now returns, not an unfaithful slave, in whom thou couldst repose no confidence, but as a brother, a beloved brother in the Lord, to be in the same heavenly family with thee for ever. Thou hast, therefore, reason to be thankful to God that he did depart, that he might be restored to thee again infinitely better than he was when be left thee. God has permitted his unfaithfulness, and overruled the whole both to his advantage and thine. The apology for Onesimus is very similar to that made by Joseph for his brethren, Gen 45:5.