Apostle
In the Latter Day Saint movement, an apostle is a "special witness of the name of Jesus Christ who is sent to teach the principles of salvation to others." In many Latter Day Saint churches, an apostle is a priesthood office of high authority within the church hierarchy. As of March 31st, 2018, the Twelve Apostles of the LDS Church are: M. Russell Ballard, Jeffrey R. Holland, Dieter F. Uchtdorf, David A. Bednar, Quentin L. Cook, D. Todd Christofferson, Neil L. Anderson, Ronald A. Rasband, Gary E. Stevenson, Dale G. Renlund, Gerrit W. Gong, and Ulisses Soares. There are also members of the Quorum of the Seventy (referred to as “Seventies”). They typically work under the direction of the twelve apostles and are given similar responsibilities that build up the church. In many churches, apostles may be members of the Quorum of the Twelve Apostles of the church. In most Latter Day Saint churches, modern-day apostles are considered to have the same status and authority as the biblical apostles. In the Latter Day Saint tradition, apostles and prophets are believed to be the foundation of the church, with Jesus as the chief cornerstone. The Articles of Faith, written by Joseph Smith, mentions apostles: "We believe in the same organization that existed in the Primitive Church, namely, apostles, prophets, pastors, teachers, evangelists, and so forth."
Judas Iscariot
Ehrman argues that Judas's betrayal "is about as historically certain as anything else in the tradition", pointing out that the betrayal is independently attested in the Gospel of Mark, in the Gospel of John, and in the Book of Acts. Ehrman also contends that it is highly unlikely that early Christians would have made the story of Judas's betrayal up, since it reflects poorly on Jesus's judgement in choosing him as an apostle. Nonetheless, Ehrman argues that what Judas actually told the authorities was not Jesus's location, but rather Jesus's secret teaching that he was the Messiah. This, he holds, explains why the authorities did not try to arrest Jesus prior to Judas's betrayal. John P. Meier sums up the historical consensus, stating, "We only know two basic facts about [Judas]: (1) Jesus chose him as one of the Twelve, and (2) he handed over Jesus to the Jerusalem authorities, thus precipitating Jesus' execution."