Ambrosiaster : Paul is confident because of the way the Corinthians responded to his reproof in the first letter. The fact that they did not take it badly has given him the confidence to admonish them again. He also says that he has been consoled by this to such an extent that in spite of all his affliction he is overflowing with joy. Seeing that there is hope for the people on whose behalf he is enduring hardships, he is rejoicing in spite of his tribulations, being certain that he will please God for the fact that they have received salvation. — COMMENTARY ON PAUL'S EPISTLES John Chrysostom : "Great is my boldness of speech towards you." 'Therefore I venture upon such things,' he says, 'not to condemn you by what I say, but out of my great boldness of speech,' which also farther signifying, he said, "Great is my glorying on your behalf." 'For think not indeed,' he saith, 'that because I thus speak, I speak as though I had condemned you altogether; (for I am exceedingly proud of, and glory in, you;) but both out of tender concern and a desire that you should make greater increase unto virtue.' And so he said to the Hebrews also after much rebuke; "But we are persuaded better things of you, and things that accompany salvation, though we thus speak: and we desire that each one of you may show the same diligence to the fullness of hope even to the end." (Hebrews 6:9, 11) So indeed here also, "Great is my glorying on your behalf." 'We glory to others of you,' he says. Seest thou what genuine comfort he has given? 'And,' he saith, 'I do not simply glory, but also, greatly.' Accordingly he added these words; "I am filled with comfort." What comfort? 'That coming from you; because that ye, having been reformed, comforted me by your conduct.' This is the test of one that loveth, both to complain of not being loved and to fear lest he should inflict pain by complaining immoderately. Therefore he says, "I am filled with comfort, I overflow with joy." 'But these expressions,' saith one, 'seem to contradict the former.' They do not do so, however, but are even exceedingly in harmony with them. For these procure for the former a favorable reception; and the praise which they convey makes the benefit of those rebukes more genuine, by quietly abstracting what was painful in them. Wherefore he uses these expressions, but with great genuineness and earnestness. For he did not say, 'I am filled with joy;' but, "I abound;" or rather, not "abound" either, but "super-abound;" in this way also again showing his yearning, that even though he be so loved as to rejoice and exult, he does not yet think himself loved as he ought to be loved, nor to have received full payment; so insatiable was he out of his exceeding love of them. For the joy it brings to be loved in any degree by those one passionately loves, is great by reason of our loving them exceedingly. So that this again was a proof of his affection. And of the comfort indeed, he saith, 'I am filled;' 'I have received what was owing to me;' but of the joy, "I superabound;" that is, 'I was desponding about you; but ye have sufficiently excused yourselves and supplied comfort: for ye have not only removed the ground of my sorrow, but have even increased joy.' Then showing its greatness, he not only declares it by saying, 'I superabound in joy," but also by adding, "in all our affliction." 'For so great was the delight arising to us on your account that it was not even dimmed by so great tribulation, but through the excess of its own greatness it overcame the sorrows that had hold of us, and suffered us not to feel the sense of them.' — Homily 14 on 2 Corinthians Methodius of Olympus : Let the earth also cause compassion to spring up to its inhabitants; for I am filled with comfort; I am exceeding joyful since I have seen Thee, the Saviour of men. — Methodius Oration Concerning Simeon and Anna