Context: In Chapters 13 through 16 of his Gospel John describes the events that took place in the Upper Room, immediately following the Last Supper. John's information, apparently, comes from an eyewitness who is probably the host. The account omits certain episodes, which probably occurred while he was absent checking on the movements of the authorities, or perhaps following Judas. For example, he does not mention the sacrament of the Last Supper. After the disciples have eaten their meal, Jesus washes their feet; this is an act of hospitality in a hot and dusty country and is customarily performed by a servant. Jesus thus humbles Himself as an example to His disciples; there have been signs of rivalry among them, and He wishes them to be reminded once more of the humility that must be theirs. Afterward He announces that one of those present will betray Him. Those present are reclining on couches about the table, and the eyewitness is close enough to Jesus that by leaning back he can speak to Him privately. At a sign from Peter he does so and asks Jesus who is the guilty man. It is customary to hand others morsels at table, and Jesus indicates that the next morsel He passes will go to the betrayer. The others present do not overhear the conversation between Jesus and the eyewitness: it is not recorded elsewhere in this circumstantial fashion. In any case, the culprit's identity will shortly be known to all. Jesus knows His disciples thoroughly, and what Judas has done is not something a weak character can successfully hide. He tells Judas to play out his part; Judas picks up the bag of money and leaves. It is probable that the witness follows him, to return only when the soldiers do; John does not describe the Agony in the Garden. The witness' account of what takes place immediately upon Jesus' announcement of betrayal is given below:
Jesus answered, He it is, to whom I shall give a sop, when I have dipped it. And when he had dipped the sop, he gave it to Judas Iscariot, the son of Simon.
And after the sop Satan entered into him. Then said Jesus unto him, That thou doest, do quickly.
Now no man at the table knew for what intent he spake this unto him.
For some of them thought, because Judas had the bag, that Jesus had said unto him, Buy those things that we have need of against the feast; or, that he should give something to the poor.
He then having received the sop went immediately out: and it was night.
Therefore, when he was gone out, Jesus said, Now is the Son of man glorified, and God is glorified in him.
If God be glorified in him, God shall also glorify him in himself, and shall straightway glorify him.
Little children, yet a little while I am with you. Ye shall seek me: and as I said unto the Jews, Whither I go, ye cannot come; so now I say to you.
A new commandment I give unto you, That ye love one another; as I have loved you, that ye also love one another.
By this shall all men know that ye are my disciples, if ye have love one to another.
Simon Peter said unto him, Lord, whither goest thou? Jesus answered him, Whither I go, thou canst not follow me now; but thou shalt follow me afterwards.