At the end of four days' travel, they arrived at the place where a large monastic community had for its chief Alexander's own brother, their archimandrite. Did his way of life accord with the Gospel of the Lord? It was Alexander's intention to find out.
He brought a single member of his brotherhood up to the gates with him and knocked. "Patience," responded the gatekeeper in the ordinary fashion. "Let me notify the abbot, and then you may enter." But Alexander refused to wait, and followed him inside, to find out if the archimandrite would be roused against his gatekeeper.
When his saintly brother, whose name was Peter, beheld him after thirty years, he recognized his sibling at once, for even in darkness it is natural to recognize one's own. And he fell at his feet, and hugged them, and begged Alexander to forgive what had taken place. But the blessed one spoke harshly and accusingly. "Our father Abraham received his guests personally and attended to them, and our lord Jesus Christ made it the law." And he shook the dust from his clothes and went back on the road. The most reverend Peter and all the brothers of his community were in tears as they begged him to stay, even if just one day, but Alexander declined. And with this lesson in true monastic poverty and divine love he left them, and set off for Antioch.
The Life of Alexander the Sleepless III.37