John 13:25-27

He leaning back, as he was, on Jesus’ breast saith unto him, Lord, who is it? Jesus therefore answereth, He it is, for whom I shall dip the sop, and give it him. So when he had dipped the sop, he taketh and giveth it to Judas, the son of Simon Iscariot. And after the sop, then entered Satan into him. Jesus therefore saith unto him, What thou doest, do quickly.