Jesus answered them, "Did I not myself select you as the Twelve? And yet one of you is a devil."

You sprang from the devil, your real father, and you want to practice your father's wishes. He was a murderer from the very start, and he does not stand by the truth, because there is no truth in him. When he tells a lie, he speaks out of his own nature, because he is a liar and the father of lies.

So Jesus, while supper was on -- although He knew that the devil had suggested to Judas Iscariot, Simon's son, to betray Him --