Apostles
Later in the Gospel narratives the twelve apostles are described as having been commissioned to preach the Gospel to "all the nations", regardless of whether Jew or Gentile. Paul emphasized the important role of the apostles in the church of God when he said that the household of God is "built upon the foundation of apostles and prophets, Christ Jesus himself being the cornerstone".
Although not one of the apostles commissioned during the life of Jesus, Paul, a Jew named Saul of Tarsus, claimed a special commission from the risen Jesus and is considered "the apostle of the Gentiles", for his missions to spread the gospel message after his conversion. In his writings, the epistles to Christian churches throughout the Levant, Paul did not restrict the term "apostle" to the Twelve, and often refers to his mentor Barnabas as an apostle. The restricted usage appears in the Revelation to John.
Judas Iscariot
Although the canonical gospels frequently disagree on the names of some of the minor apostles, all four of them list Judas Iscariot as one of them. The Synoptic Gospels state that Jesus sent out "the twelve" (including Judas) with power over unclean spirits and with a ministry of preaching and healing: Judas clearly played an active part in this apostolic ministry alongside the other eleven. However, in John's Gospel, Judas's outlook was differentiated - many of Jesus' disciples abandoned him because of the difficulty of accepting his teachings, and Jesus asked the twelve if they would also leave him. Simon Peter spoke for the twelve: "Lord, to whom shall we go? You have the words of eternal life," but Jesus observed then that although Judas was one of the twelve whom he had chosen, he was "a devil."
Matthew directly states that Judas betrayed Jesus for a bribe of "thirty pieces of silver" by identifying him with a kiss – "the kiss of Judas" – to arresting soldiers of the High Priest Caiaphas, who then turned Jesus over to Pontius Pilate's soldiers.