Origen
Catena Aurea · Matthäusevangelium 26
Now when the even was come, he sat down with the twelve. And as they did eat, he said, Verily I say unto you, that one of yon shall betray me. And they were exceeding sorrowful, and began every one of them to say unto him, Lord, is it I? And he answered and said, He that dippeth his hand with me in the dish, the same shall betray me. The Son of man goeth as it is written of him: but woe unto that man by whom the Son of man is betrayed! it had been good for that man if he had not been born. Then Judas, which betrayed him, answered and said, Master, is it I? He said unto him, Thou hast said.
After all the Apostles had asked, and after Christ had spoken of him, Judas at length enquired of himself, with the crafty design of concealing his treacherous purpose by asking the same question as the rest; for real sorrow brooks not suspense.