John Chrysostom
Catena Aurea · Markusevangelium 14
And in the evening he cometh with the twelve. And as they sat and did eat, Jesus said, Verily I say unto you, One of you which eateth with me shall betray me. And they began to be sorrowful, and to say unto him one by one, Is it I? and another said, Is it I? And he answered and said unto them, It is one of the twelve, that dippeth with me in the dish. The Son of man indeed goeth, as it is written of him: but woe to that man by whom the Son of man is betrayed! good were it for that man if he had never been born.
(ubi sup.) Where it is evident that He did not proclaim him openly to all, lest He should make him the more shameless; at the same time He did not altogether keep it silent, lest thinking that he was not discovered, he should boldly hasten to betray Him.