John 13:18-30 King James Version (KJV)
18 I speak not of you all: I know whom I have chosen: but that the scripture may be fulfilled, He that eateth bread with me hath lifted up his heel against me.
19 Now I tell you before it come, that, when it is come to pass, ye may believe that I am he.
20 Verily, verily, I say unto you, He that receiveth whomsoever I send receiveth me; and he that receiveth me receiveth him that sent me.
21 When Jesus had thus said, he was troubled in spirit, and testified, and said, Verily, verily, I say unto you, that one of you shall betray me.
22 Then the disciples looked one on another, doubting of whom he spake.
23 Now there was leaning on Jesus' bosom one of his disciples, whom Jesus loved.
24 Simon Peter therefore beckoned to him, that he should ask who it should be of whom he spake.
25 He then lying on Jesus' breast saith unto him, Lord, who is it?
26 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.
27 And after the sop Satan entered into him. Then said Jesus unto him, That thou doest, do quickly.
28 Now no man at the table knew for what intent he spake this unto him.
29 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.
30 He then having received the sop went immediately out: and it was night.