Two friends, John and Sergius, swore brotherhood before the icon of the holy Mother of God in this monastery. John was a rich man, with a five-year-old son, Zachariah. John fell ill, and at his death commended his son to the care of Sergius, and left in Sergius's keeping a large sum of silver and gold for him to hand over to Zachariah when he had grown up. When Zachariah came of age, however, Sergius denied receiving anything from the deceased John. Then Zachariah said: 'Let him swear before the same icon of the most holy Mother of God, in front of which he accepted brotherhood with my late father, that he received nothing from John, and then I will seek nothing more from him.' Sergius agreed, but when he had sworn this and went up to kiss the icon, some force held him back and would not allow him to come near. Then, tormented all at once by a demon, he began to cry out: 'Holy fathers Antony and Theodosius, do not let this merciless angel destroy me!' The demon had attacked him by God's permission. He then told them of all the money which John had left. But when they opened the box, they found double the amount. Taking it, Zachariah gave it to the monastery and was himself tonsured as a monk. He lived a long time and was worthy of God's great gifts, entering peacefully into eternity.