The Apostle John was one of the "pillars" of the Jerusalem church after Jesus' death. He was one of the original twelve apostles and is thought to be the only one to have lived into old age and not be killed for his faith. It had been believed that he was exiled (around 95 AD) to the Aegean island of Patmos, where he wrote the Book of Revelation. However, some attribute the authorship of Revelation to another man, called John the Presbyter, or to other writers of the late first century AD.
Matthew the Apostle, also known as Saint Matthew and as Levi, was, according to the New Testament, one of the twelve apostles of Jesus. According to Christian traditions, he was also one of the four Evangelists and thus is also known as Matthew the Evangelist.
The New Testament records that as a disciple, he followed Jesus, and was one of the witnesses of the Ascension of Jesus. Later Church fathers such as Irenaeus and Clement of Alexandria claim that Matthew preached the Gospel to the Jewish community in Judea, before going to other countries.