by jimwalton » Wed Jan 06, 2016 1:17 pm
Wow, great questions. Thanks for asking.
First of all, though, you've misspoken at the beginning. You said, "I know there's not much historicity of Jesus in the gospels." That is not proved, and there is no evidence to support that claim. There is sparse record of Jesus' life and acts outside of the gospels (and what there is is second hand, viz., Tacitus, Josephus, Suetonius, etc.). But that's *very* different than claiming there's not much historicity of Jesus in the gospels. Since the gospels are the only record we have of Jesus' life, they may be quite accurate and thoroughly historical. It just can't be evidenced by extra-biblical corroboration. But the silence of corroboration doesn't ensure non-historicity.
Now on to your question. We don't have as much information as we would like on the betrayal, so we are left to do some interpretation. A fairly good case can be made that, up until the betrayal, Judas might have been one of Jesus' closest friends. After all, he had been chosen as one of the Twelve and entrusted with the moneybag, not a responsibility Jesus would have taken lightly. A reconstruction of the seating arrangement for the Last Supper indicates that, while John was sitting at Jesus' right hand, the place of the honored guest, Jesus was sitting at Jesus' left, the place of the intimate friend.
One literary technique throughout the Gospel of Mark is *intercalation*, the sandwiching of narratives by other narratives. The events are related to the same theme and serve to interpret one another. It happens often in Mark, and there is one here in chapter 14. The plot against Jesus by the chief priests and scribes sandwiches the faithful devotion of the woman who anoints him with costly perfume. The woman is giving sacrificially while Judas and the leaders are grabbing treacherously. The woman is loving, while the leaders are murderous. She shows devotion while Judas double-crosses. It's at least one role Judas plays in the narrative.
The setting of the story is antagonism and opposition (another common theme in Mark). The leaders have been prevented from arresting Jesus because of his popularity, as you said. Their original plan was to kill him at the feast (Jn. 11.50). They were stalled by the Triumphal entry and the great Tuesday debate. Jesus plainly had too large a following.
We know from John 12:6 that Judas had a problem with greed and theft, so that could be one motive for his actions. Judas had betrayed Jesus and the other disciples before this by skimming off the purse. Perhaps Judas has come to finally realize that Jesus' kingdom was not going to earn for him the wealth and power he desired, but was going to be a spiritual kingdom. It's possible he betrayed Jesus for the cash and the status before the religious leaders (powerful people in the country). Knowing religious people, the leaders could easily look on Judas's treachery as an act of Providence, justifying their "godly" plots against Jesus. In an act of extreme hypocrisy, they give money that was meant for the poor (ironically, probably like the money poor widows tossed in the coffers, Mk. 12.41-44) and use it as blood money (another comparison using intercalation). Judas looked for an opportunity to hand him over when the crowds would not interfere.
Another role of the betrayal is to show the injustice of the deed. It's bad enough to be betrayed by enemies, but by friends is without excuse. Breaking bread was a sign of fellowship, association, and friendship in their culture. To this day Arabs will not violate hospitality by mistreating one who breaks bread with them. The betrayal scene shows how hypocritical and despicable the leaders and Judas were.
Fast forward to the garden, and to your real questions. Why would they need to hire Judas to reveal Jesus to the authorities? First of all, they don't know where Jesus is. Judas does. Had they just generally searched for Jesus, their search would have become evident and given Jesus time to escape. Secondly, it's dark. They want no mistakes when the finally decide to do the dirty deed done dirt cheap. Third, it's a substantial (how substantial is unknown) group of soldiers, a mix of both Romans and Jews. The Jewish leaders may know Jesus quite well, but the soldiers don't necessarily know him. They want no mistakes. They may have expected Jesus to run; he had eluded their grasp several times before. They come with lanterns in case he runs and hides. His followers are there, so they have come with swords, expecting mayhem.
> Judas does nothing to convict Jesus
Judas does what he was hired to do. The account is clear that he is being paid to turn him over. You want Judas to participate in the trial, but remember the motives of Judas are not revealed and are still open to interpretation. They are difficult to understand. But we at least know what he was being paid to do: hand Jesus over.
> Isn't that false arrest? How can you apprehend a man without probable cause?
Absolutely. It is false arrest for sure. There was no law that justified this arrest, and no charge was expressed against him until later. Even the proceedings were illegal. In Jn. 18.19 they question Jesus about his disciples and teaching; the law stipulated that a man was innocent until proved guilty. Witnesses were supposed to be called before Jesus was cross-examined. Jesus brings this out in Jn. 18.21—it was the priest's duty to call witnesses (and in Jewish law witnesses for the defense were to be called first). In Jn. 18.22 Jesus was struck in the face. This is also against Jewish law. Jesus calls him on it in v. 23.
(Another intercalation here, not pertinent to your question, but of interest: Jesus' confession before the Sanhedrin is framed by Peter's denial (14.53-72) so that Jesus' faithfulness is set in contrast to Peter's unfaithfulness.)
> Why was Judas needed?
To make sure they found Jesus (he moved around a lot), got the right guy, in the cover of darkness, in a mass of people.