Repentance is of two sorts; that which is termed legal, and that which is styled evangelical repentance. The former (which is the same that is spoken of here) is a thorough conviction of sin. The latter is a change of heart (and consequently of life) from all sin to all holiness.
Related Commentaries of Matthew 3:8
Matthew 3:8
8 Bring forth therefore fruits meeta for repentance: