Augustine of Hippo, on Matt 18:15

“But if thy brother shall offend against thee, go, and rebuke him between thee and him alone. If he shall hear thee, thou shalt gain thy brother.”

“(ubi sup.) But the Apostle says, Them that sin ‘rebuke before all, that others may fear to do the like. (1 Tim 5:20.) Sometimes therefore your brother is to be spoken to between thee and him alone, sometimes to be rebuked before all. What you must do first, attend and learn; If thy brother, says He, sin against thee, tell him of his fault between thee and him alone. Why? Because he has sinned against you? What is it that he has sinned against you? You know that he has sinned, and therefore since his sin was in private, let your rebuke be in private too. For if you alone know of his trespass, and proceed to rebuke him before all, you do not correct but betray him. Your brother has sinned against you; if you alone know thereof, then he has sinned against you only; but if he did you a wrong in the presence of many, then he has sinned against those also who were witnesses of his fault. Those faults then are to be rebuked before all, that are committed before all; those which are done in private, are to be rebuked in private. Discern times, and the Scriptures are consistent. But why do you correct your neighbour? Because his trespass has hurt yourself? Far be it from thee. If you do it from self-love, you do nought; if you do it from love of him, you do most rightly. Lastly, in what you shall say to him, keep in view for whose sake it is that you ought to do it, for your own or for his, for it follows, If he hear thee, thou hast gained thy brother; do it therefore for his sake, that you may gain him. And do you confess that by your sin against man you were lost; for if you were not lost, how has he gained you? Let none then make light of it when he sins against his brother.”

Imported from an open dataset — not yet checked against the printed edition.