2 Corinthians 7:8

Moreover, even sorrow, the emotion for which, the Stoics claim, there can be found in the soul of a wise man no corresponding "attitude," is a word used in a good sense, especially in Christian writings. The apostle, for example, praises the Corinthians because they were sorrowful according to God. Of course, someone may object that the apostle congratulated the Corinthians because their sorrow led them to repentance and that such sorrow can be experienced only by those who have sinned. What he says is this: "Seeing that the same letter did for a while make you sorry, now I am glad; not because you were made sorry but because your sorrow led you to repentance. For you were made sorry according to God, that you might suffer no loss at our hands. For the sorrow that is according to God produces repentance that surely tends to salvation, whereas the sorrow that is according to the world produces death. For behold this very fact that you were made sorry according to God, what earnestness it has wrought in you."

Having said, "I do not regret," he tells the reason also; alleging the good that resulted from his letter; and skillfully excusing himself by saying, "though but for a season." For truly that which was painful was brief, but that which was profitable was perpetual. And what indeed followed naturally was to say, 'even though it grieved you for a season, yet it made you glad and benefited you forever.' But he doth not say this: but before mentioning the gain he passes again to his praises of them, and the proof of his own concern for them, saying, "Now I rejoice, not that ye were made sorry," ('for what gain came to me from you being made sorry?) "but that ye were made sorry unto repentance," that the sorrow brought some gain.' For a father also when he sees his son under the knife rejoiceth not that he is being pained, but that he is being cured; so also doth this man. But observe how he transfers all that was well achieved in the matter unto themselves; and lays whatever was painful to the account of the Epistle, saying, "It made you sorry for a season;" whilst the benefit that resulted from it he speaks of as their own good achieving. For he said not, 'The Epistle corrected you,' although this was the case; but, "ye sorrowed unto repentance." "For ye were made sorry after a godly sort, that ye might suffer loss by us in nothing." Seest thou wisdom unspeakable? 'For had we not done this,' he says, 'we had done you damage.' And he affirms that indeed which was well achieved to be theirs, but the damage his own, if indeed he had been silent. For if they are likely to be corrected by a sharp rebuke, then, if we did not sharply rebuke, we should have done you damage; and the injury would not be with you alone, but also with us. […]

He goes on to apologize for his Epistle, when, (the sin having been corrected,) to treat them tenderly was unattended with danger; and he shows the advantage of the thing. For he did this indeed even before, when he said, "For out of much affliction and anguish of heart, I wrote unto you: not that ye should be made sorry, but that ye might know the love which I have toward you." And he does it also now, establishing this same point in more words. And he said not, 'I regretted indeed before, but now I do not regret:' but how? "I regret not now, though I did regret." 'Even if what I wrote,' he says, 'was such as to overstep the [due] measure of rebuke, and to cause me to regret; still the great advantage which has accrued from them doth not allow me to regret.' And this he said, not as though he had rebuked them beyond due measure, but to heighten his praises of them. 'For the amendment ye manifested was so great,' saith he, 'that even if I did happen to smite you too severely insomuch that I even condemned myself, I praise myself now from the result.' Just as with little children, when they have undergone a painful remedy, such as an incision, or cautery, or bitter physic, afterwards we are not afraid to sooth them; so also doth Paul.

Although I wrote to you in such a way, he says, that I exceeded the measure of reproach and ought to have repented of having censured you beyond measure, yet the great benefit arising from it does not allow me now to repent. He said …

For though I made you sorry with a letter,....