Early Church Fathers Ambrose of Milan Andreas of Caesarea Arethas of Caesarea Athanasius of Alexandria Augustine of Hippo Barnabas of Cyprus Chrysostom of Antioch Clement of Rome Eusebius of Caesarea Hebrews Book Author Hippolytus of Rome Ignatius of Antioch Irenaeus of Lysons James, the Lord’s Brother John the Apostle Justin Martyr Luke the Physician Mark the Evangelist Matthew the Evangelist Origen of Alexandria Paul the Apostle Peter the Apostle