It was said of Abba Moses at Scetis that when he had arranged to go to Petra, he grew tired in the course of the journey and said to himself, ‘How can I find the water I need there?’ Then a voice said to him, ‘Go, and do not be anxious about anything.’ So he went. Some Fathers came to see him and he had only a small bottle of water. He used it all up in cooking lentils for them. The old man was worried, so he went in and came out of his cell, and he Prayed to God, and a cloud of rain came to Petra and filled all the cisterns. After this, the visitors said to the old man, ‘Tell us why you went in and out.’ The old man said to them, ‘I was arguing with God, saying, “You brought me here and now I have no water for your servants.” This is why I was going in and out; I was going on at God till He sent us some water.’
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