That for which I was sent is accomplished

Moses, the Libyan, was a very gentle and exceedingly lovable man who was accounted worthy of the gift of healing.  He told me: When I was a youth in the monastery, we dug a large cistern twenty feet across.  Eighty of us had been digging away there for three days and we had gone about a cubit farther than usual.  We had expected to find a spring but had not found water.  Deeply disappointed, we were considering giving up the task.  Abba Pior happened along then from the Great Desert at the sixth hour, in the heat of the day, and the old man was wearing a cloak.  He greeted us and then said, “Why have you become faint of heart, O ye of little faith?  For since yesterday I have seen you losing heart.”

And he went down into the pit of the cistern on a ladder and prayed along with them.  He took up the pickaxe and said while striking the third blow, “O God of the holy Patriarchs, do not bring to naught the labor of your servants, but send them the water they need.”  And at once water spouted forth so as to sprinkle them. Then he said another prayer and left.  They tried to get him to eat, but he did not accede to their wishes, however, but said, “That for which I was sent is accomplished.  I was not sent for this.”

Palladius,

Historia Lausiaca, 39