Strange as it may sound, genuine repentance seems more difficult than forgiveness. This should not surprise those who have pondered the gravity and power of human sin. Its most notable feature is that it unfailingly refuses to be sin. We not only refuse to admit the wrongdoing and to accept the guilt but seem neither to detest nor feel sorry about the sin committed… repentance before God is possible only through the work of the Holy Spirit. The same may well be true of repentance before human beings.
- Miroslav Volf / “Against the Tide”