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 Judas Iscariot's historical existence is generally widely accepted among secular historians, this relative consensus has not gone entirely unchallenged. The earliest possible allusion to Judas comes from the First Epistle to the Corinthians , in which Paul the Apostle does not mention Judas by name, but uses the passive voice of the Greek word "paradidōmi" (παραδίδωμι), which most Bible translations render as "was betrayed": "...the Lord Jesus on the night when he "was betrayed" took a loaf of bread..." Nonetheless, many biblical scholars argue that the word "paradidōmi" should be translated as "was handed over". This translation could still refer to Judas, but it could also instead refer to God metaphorically "handing Jesus over" to the Romans.