2 Corinthians 7:9

Now I rejoice, not that ye were made sorry
Their grief and sorrow, as a natural passion, was no matter or cause of joy to him; nor was this what he sought after, being what he could take no real pleasure in; for so far as that was a pain to them, it was a pain to him:

but that ye sorrowed to repentance;
their sorrow issued in true evangelical repentance, and this was the ground of his rejoicing; for as there is joy in heaven among the angels, at the repentance of a sinner, so there is joy in the church below, among the saints and ministers of the Gospel, when either sinners are brought in, or backsliders returned by repentance:

for ye were made sorry after a godly sort;
what gave him so much joy and satisfaction was, that their sorrow was of the right sort; it was a godly sorrow, they sorrowed after; or according to God, according to the will of God, and for sin, as it was committed against him; it was a sorrow that God wrought in them:

that ye might receive damage by us in nothing;
what added to his pleasure was, that his writing to them, and the effect it produced, had not been in the least detrimental to them; things had worked so kindly, and this sorrow had wrought in such a manner, that they were not hurt in their souls, but profited; nor in their church state, they had not lost one member by it; nay, the offender himself, which was the occasion of all this trouble, was recovered and restored by these means.