forgiveness

O ye friends of God! Show ye an endeavor that all the nations and communities of the world, even the enemies, put their trust, assurance and hope in you; that if a person falls into errors for a hundred-thousand times he may yet turn his face to you, hopeful that you will forgive his sins; for he must not become hopeless, neither grieved nor despondent. This is the conduct and the manner of the people of Bahá'. This is the foundation of the most high pathway! Ye should conform your conduct and manners with the advices of 'Abdu'l-Bahá. 
(‘Abdu’l-Baha, ‘Tablets of Abdul-Bahá Abbas’, vol. 2; The Compilation of Compilations, vol. 1, Excellence in All Things)