The author of the famous `Ladder', he came from an unknown place to Mount Sinai as a sixteen-year-old boy and remained there, first as a novice, then as a hermit and finally as abbot of Sinai, until he died at the age of eighty, in about 649. His biographer, the monk Daniel, says of him: `He brought his body up to Mount Sinai, but his spirit he brought to the Mount of Heaven'. He spent nineteen years in obedience to his spiritual father, Martyrios. Anastasius of Mount Sinai, who saw John once as a young man, foretold that he would be abbot of Mount Sinai. After the death of his spiritual father, John took himself off to a cave, where he lived for twenty years in strict asceticism. His disciple, Moses, fell asleep one day in the cool shade of a huge rock. John was at prayer in his cell, and, perceiving that his disciple was in danger, began to pray for him. Moses came up to him later, fell to his knees and began to thank him for saving him from certain death. And he related how he had heard John calling him in his sleep and had jumped up at the very moment that a rock fell. Had he not jumped out of the way, the rock would certainly have killed him. At the importunate urging of the brethren, John accepted the abbacy, and guided their souls to salvation with loving zeal. He once heard a monk reproach him for being too verbose. He was not in the least angered, but was silent for an entire year, not uttering a single word until the brethren begged him to speak. He then began to instruct them with the wisdom with which God had endowed him. Once 600 pilgrims came to Mount Sinai. At supper they all noticed an agile young man dressed as a Jew who was serv-ing at table and giving orders to the other servants, taking charge of everything. Suddenly, he disappeared. While everyone was ponder-ing this and asking questions among themselves, John said: `Do not bother to look for him; that was the prophet Moses serving you in his own home.' During the time that he was silent in his cave, John wrote many instructive books, of which the most famous, `The Lad-der', is much read to this day. It describes the way to raise the soul to God as if on a ladder. Before his death, John appointed his own brother, George, to the abbacy, but George began to grieve greatly at the approaching parting with John. Then John said that, if he were found worthy to stand close to God in the next world, he would pray that George be taken up to heaven in the same year. And so it came to pass. After ten months, George also fell asleep and departed to take his place among heaven's citizens alongside his brother John.