There was a very important meeting in Jerusalem to settle certain questions in which the early Church was greatly interested, and about which there had been much difference in judgment and feeling. St. Paul was present. He says that St. John was there, one of the three Pillar-Apostles who gave to him and Barnabas "the right hands of fellowship." This is the only time of which we certainly know of the meeting of these two Apostles; though we have imagined the possibility of John's visiting the school of Gamaliel, and worshiping in the Temple when young Saul was in Jerusalem. From this time, A.D., 50, we lose sight of John and do not see him again until A.D., 68, in the Isle of Patmos. As his Lord was hidden eighteen years, from the time of His boyhood visit to Jerusalem until He entered on His public ministry, so long His disciple is concealed from our view. Leaving Jerusalem he probably never returned. Why he left we do not know. It may have been because of persecutions. Perhaps the death of Mary relieved him from the charge we may believe he had faithfully kept, and thus made it possible for him to go about like other Apostles to preach the Gospel. If so we have no hint in what direction he went. He may have gone directly to Ephesus. On reaching it perhaps he found a welcome from some who had heard him speak in their own language on the day of Pentecost. It was a populous city, wealthy and wicked. Its magnificent Temple of Diana was one of the seven wonders of the world. Its ruins give us a hint of its former glory. All the traditions of early times make Ephesus the home of St. John in the latter part of his life. From it as a centre he ministered to the Churches of Asia Minor. Gospel truth found its way thither, even before Paul made it the centre of his third missionary tour. He was driven from it, but he left the foundation of a Christian Church, upon which John builded. There were like foundations in at least six other important cities of Asia Minor--Smyrna, Pergamum, Thyatira, Sardis, Philadelphia and Laodicea. The silence of the latter half of St. John's life is broken but once, and that by himself. He tells us that he "was in the isle that is called Patmos." It was not far from Ephesus, within a day's sail. It is a huge rock, rugged and barren, only a few miles in length. Why was John in Patmos? He says, "for the word of God and the testimony of Jesus." What does he mean by this? Perhaps that he was led thither by circumstances of which we do not know, or by the guidance of the Spirit of God, who there would make wonderful revelations to him. But more probably he was banished thither for the preaching of the Gospel of Jesus, and for being a faithful follower of Him, notwithstanding the persecutions of Nero or Domitian. As told in an ancient Latin hymn,-- "To desert islands banished, With God the exile dwells, And sees the future glory His mystic writing tells."