4 You at all events heard yesterday how I extolled the power of prayer, how I reproached those who pray with listlessness; without having publicly exposed one of them. Those then who were conscious to themselves of earnestness, accepted that commendation of prayer, and became still more earnest by the praises, while those who were conscious to themselves of listlessness, accepted on the other hand the rebuking, and put off their carelessness. But neither these nor those do we know; and this ignorance is serviceable to both— how, I now tell you.
He who has heard the commendations of prayer and is conscious to himself of earnestness, were he to have many witnesses of the commendations, would have lapsed towards pride; but, as it is, by having secretly accepted the praise, he is removed from all arrogance. On the other hand he who is conscious to himself of listlessness, having heard the accusation, has become better from the accusation, as having no one of men a witness of the rebuking; and this was of no ordinary profit to him.
For on account of the being flurried at the opinion of the vulgar, so long as we may think that we escape notice in our wickedness, we exert ourselves to become better; but when we have become notorious to all, and have lost the consolation derived from the escaping notice, we grow more shameless and remiss rather. And just as sores become more painful by being unbandaged and frequently exposed to cold air, so also the soul after having sinned, if in the presence of many it be rebuked for what it has done amiss, grows thereby more shameless.
In order therefore that this might not take place, the word administered its medicine to you covertly. And that you may understand that the gain which this covert treatment has is great, hear what the Christ says. “If your brother have committed a fault against you convince him of it,” and he did not say “between him and the whole town,” nor, “between you and the whole people,” but “only between you and him.” Let the accusation, he says, be unwitnessed to, in order that the change to amendment may be made easy of digestion.
A great good surely, the making the advice unpublished. Sufficient is the conscience, sufficient that incorruptible judge. It is not so much thou who rebukest him who has done wrong as his own conscience (that accuser is the sharper), nor do you do it with the more exact knowledge of the faults committed. Add not therefore wound to wound by exposing him who has done wrong; but administer for yourself the counsel unwitnessed. This therefore we are doing now— the very thing that Paul also did, framing the indictment against him who among the Corinthians had sinned without citing of witnesses.
And hear how. “On this account,” he says, “brethren, I have applied these figures of speech to myself and Apollos.” And yet not he himself nor Apollos were they who had rent the people in schism and divided the Church; but all the same he concealed the accusation, and just as by some masks, by hiding the countenances of the defendants by his own and Apollos' names, he afforded them power to amend of that wickedness. And again, “Lest in some way after I have come God humble me, and I may have to mourn many of those who have before sinned, and have not repented over the uncleanness and lasciviousness which they had committed.” See how here also he indefinitely mentions those who had sinned, in order that he might not, by openly bringing the accusation, render the soul of those who had sinned more shameless.
Therefore, just as we administer our reproofs with so much sparing of your feelings, so do ye also with all seriousness receive the correction; and attend with carefulness to what is said.
Source: Homily Against Publishing the Errors of the Brethren (New Advent)