I'm returning your runaway slave, Onesimus, to you. I could keep him and compel you to do the right thing (releasing him), but I want you to do so willingly. So here he is. Return him to me.
Any wrong he has done you, impute the guilt to me. I will repay any money, and it pales compared to the spiritual life you have received through me. I want some benefit (Onesimus, in Greek) from you.