Tradition tells us that after the destruction of Jerusalem by the Romans in A.D. 70, the Apostle John and a core group of followers moved to Asia Minor. The apostle settled in Ephesus and soon influenced churches in several major cities. Sometime around A.D. 75–80 John wrote his Gospel, which circulated both as a missionary tract and as a report of the Son of God’s life and teaching for believers. The Christian church was firmly established by now but, as we know from 2 Timothy, 2 Peter,