Forgiveness is dependent upon signs of Repentance from the guilty party
this action is the essence of Orthodox Christianity: one cannot spiritually digest the Eucharist without Repentance for all wrongdoings and/or solving all injustices one is aware of
Teshuvah (Repentance): This is a process of acknowledging one's sins before God, seeking forgiveness, and committing to change one's behavior.
Islam
Tawbah (Repentance): Continually seeking forgiveness from Allah and turning away from sin are fundamental aspects of Islamic virtue.
Rahmah (Mercy and Compassion): Mercy, as exemplified by the Prophet Muhammad, is a central virtue. Muslims are encouraged to show compassion and kindness to all of God's creations.