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.
Then the disciples looked one on another , doubting of whom he spake .
Now there was leaning on Jesus' bosom one of his disciples, whom Jesus loved .
Simon Peter therefore beckoned to him, that he should ask who it should be of whom he spake .
He then lying on Jesus' breast saith unto him, Lord, who is it ?
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.
References for John 13:26
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.