'Godly Sorrow' in the Bible

Now I rejoice, not in your grief, but because the grief led to repentance; for you sorrowed with a godly sorrow, which prevented you from receiving injury from us in any respect.

For godly sorrow produces repentance leading to salvation, a repentance not to be regretted; but the sorrow of the world finally produces death.

For mark the effects of this very thing--your having sorrowed with a godly sorrow--what earnestness it has called forth in you, what eagerness to clear yourselves, what indignation, what alarm, what longing affection, what jealousy, what meting out of justice! You have completely wiped away reproach from yourselves in the matter.