A brother who was insulted by another brother came to Abba Sisoes, and said to him: "I was hurt by my brother, and I want to avenge myself". Abba tried to console him and said: "Don't do that, my child. Rather leave vengeance to God". But he said: "I will not quit until I avenge myself". Then Abba said: "Let us pray, brother; and standing up, he said: "Our Father... forgive us our trespasses as we forgive NOT those who trespass against us..." Hearing these words, the brother fell at the feet of the Abba and said: "I am not going to fight with my brother any more. Forgive me, Abba."