2 Corinthians 7:6-7
“Nevertheless He that comforts the lowly comforted us by the coming of Titus.”
For since he had testified great things of them in what he said, that he may not seem to be flattering them he cites as witness Titus the brother, who had come from them to Paul after the first Epistle to declare unto him the particulars of their amendment. But consider, I pray you, how in every place he makes a great matter of the coming of Titus. For he says also before, “Furthermore when I came to Troas for the Gospel, I had no relief for my spirit because I found not Titus my brother;” and in this place again “we were comforted,” he says, “by the coming of Titus.” For he is desirous also of establishing the man in their confidence and of making him exceedingly dear to them. And observe how he provides for both these things. For by saying on the one hand, “I had no relief for my spirit,” he shows the greatness of his virtue; and by saying on the other, that, in our tribulation his coming sufficed unto comfort; yet “not by his coming only, but also by the comfort wherewith he was comforted in you,” he endears the man unto the Corinthians. For nothing does so produce and cement friendships as the saying something sound and favorable of any one. And such he testifies Titus did; when he says that 'by his coming he has given us wings with pleasure; such things did he report of you. On this ground his coming made us glad. For we were delighted not “only by his coming, but also for the comfort wherewith he was comforted in you.” And how was he comforted? By your virtue, by your good deeds.' Wherefore also he adds,
“While he told us your longing, your mourning, your zeal for me.” 'These things made him glad,' he says, 'these things comforted him.' Do you see how he shows that he also is an earnest lover of theirs, seeing he considers their good report as a consolation to himself; and when he had come, gloried, as though on account of his own good things, unto Paul.
And observe with what warmth of expression he reports these things, “Your longing, your mourning, your zeal.” For it was likely that they would mourn and grieve why the blessed Paul was so much displeased, why he had kept away from them so long. And therefore he did not say simply tears, but “mourning;” nor desire, but “longing;” nor anger, but “zeal;” and again “zeal toward him,” which they displayed both about him that had committed fornication and about those who were accusing him. 'For,' says he, 'you were inflamed and blazed out on receiving my letters.' On these accounts he abounds in joy, on these accounts he is filled with consolation, because he made them feel. It seems to me, however, that these things are said not only to soften what has gone before, but also in encouragement of those who had acted in these things virtuously. For although I suppose that some were obnoxious to those former accusations and unworthy of these praises; nevertheless, he does not distinguish them, but makes both the praises and the accusations common, leaving it to the conscience of his hearers to select that which belongs to them. For so both the one would be void of offense, and the other lead them on to much fervor of mind.
Source: Homilies on Second Corinthians (New Advent)