Judas Iscariot
There are several explanations as to why Judas betrayed Jesus. In the earliest account, in the Gospel of Mark, when he goes to the chief priests to betray Jesus, he is offered money as a reward, but it is not clear that money is his motivation. In the Gospel of Matthew account, on the other hand, he asks what they will pay him for handing Jesus over. In the Gospel of Luke and the Gospel of John, the devil enters into Judas, causing him to offer to betray Jesus. The Gospel of John account has Judas complaining that money has been spent on expensive perfumes to anoint Jesus which could have been spent on the poor, but adds that he was the keeper of the apostles' purse and used to steal from it.
Judas Iscariot
The name "Judas" (Ὶούδας) is a Greek rendering of the Hebrew name Judah (יהודה, Yhûdâh, Hebrew for "God is praised"), which was an extremely common name for Jewish men during the first century AD, due to the renowned hero Judas Maccabeus. Consequently, numerous other figures with this name are mentioned throughout the New Testament. In the Gospel of Mark , the earliest of all the gospels, which was written in the mid 60s or early 70s AD, Judas Iscariot is the only apostle named "Judas". follows this portrayal. The Gospel of Luke , however, replaces the apostle whom Mark and Matthew call "Thaddeus" with "Judas son of James". Peter Stanford suggests that this renaming may represent an effort by the author of the Gospel of Luke to create a "good Judas" in contrast to the betrayer Judas Iscariot.