Quote from Ancient Patericon & St. John Chrysostom ~ Anger

   A certain monk lived in a monastery, and he was always angry. He decided, "I will leave this place and dwell by myself as a hermit, and then I will no relations with anyone, and the passion of anger will leave me." Leaving the monastery, he settled in a cave. One day, having taken up a pitcher of water, the monk set it one the ground, and it tipped over. Again he drew the water, and the pitcher tipped a second time. The he drew it again, and it fell a third time. The brother got angry, picked it up and broke it. When he had come to himself, he understood that the devil had triumphed over him and said, "Behold, I have gone away into seclusion, and I am conquered! I will go back to the monastery, for patience and the help of God are necessary everywhere!" And he returned to his previous place.

(Ancient Patericon, 7.38)

  

    Abba Agathon said: An angry man, even if he raises the dead, is not pleasing to God."

(Ancient Patericon, 10.15)

  

   Are you angry? Be angry at your sins, beat your soul, afflict your conscience, but strict in judgement and a terrible punisher of your own sins. This is the benefit of anger, wherefore God placed it in us.

(St. John Chrysostom, Conversation of Ephesians, 2)


Source:

http://orthodox.cn/patristics/300sayings_en.htm