Philemon 1:8

Wherefore. That is, on the basis of Philemon’s splendid record of genuine “love and faith” (vs. 4-7) Paul feels sure that his counsel regarding Onesimus will be graciously received. Because Philemon understands and practices intelligent Christian love, Paul will appeal only on that level. This assumption is a genuine compliment to Philemon, an expression of sincere appreciation for his Christian witness. Not all who profess Christianity are willing to take direction from others, even when it is imparted by those of superior training and experience.

Bold. Greek parresia (see on Acts 4:13).

To enjoin. Greek epitasso, “to order,” “to command.” Paul’s position as an apostle and as Philemon’s father in the faith (v. 19) presupposes the authority to which Paul could have appealed in directing Philemon to accept Onesimus as a Christian brother. There is no doubt in Paul’s mind that Philemon would have responded to any direction given him by an apostle of high authority. But Paul knew of a better way (see on v. 9). No greater compliment could be accorded any man than the frank admission that he lives above and beyond mere rules and injunctions, that his personal life is guided by the higher bidding of a personal commitment to Jesus Christ and to Christian principles.

That which is convenient. Or, “your duty,” that is, as a genuine Christian.