8 For even if I made you sorry with my letter, I do not regret it (though I did regret it, for I see that I grieved you with that letter, though only briefly). 9 Now I rejoice, not because you were grieved, but because your grief led to repentance; for you felt a godly grief, so that you were not harmed in any way by us. 10 For godly grief produces a repentance that leads to salvation and brings no regret, but worldly grief produces death.
Matthew Henry's Commentary on 2 Corinthians 7:8-10
Commentary on 2 Corinthians 7:5-11
(Read 2 Corinthians 7:5-11)
There were fightings without, or continual contentions with, and opposition from Jews and Gentiles; and there were fears within, and great concern for such as had embraced the Christian faith. But God comforts those who are cast down. We should look above and beyond all means and instruments, to God, as the author of all the consolation and good we enjoy. Sorrow according to the will of God, tending to the glory of God, and wrought by the Spirit of God, renders the heart humble, contrite, submissive, disposed to mortify every sin, and to walk in newness of life. And this repentance is connected with saving faith in Christ, and an interest in his atonement. There is a great difference between this sorrow of a godly sort, and the sorrow of the world. The happy fruits of true repentance are mentioned. Where the heart is changed, the life and actions will be changed. It wrought indignation at sin, at themselves, at the tempter and his instruments. It wrought a fear of watchfulness, and a cautious fear of sin. It wrought desire to be reconciled with God. It wrought zeal for duty, and against sin. It wrought revenge against sin and their own folly, by endeavours to make satisfaction for injuries done thereby. Deep humility before God, hatred of all sin, with faith in Christ, a new heart and a new life, make repentance unto salvation. May the Lord bestow it on every one of us.