The Son of man indeed goes, 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.
All Commentaries on Mark 14:21 Go To Mark 14
Bede
AD 735
The Lord Who had foretold His Passion, prophesied also of the traitor, in order to give him room for repentance, that understanding that his thoughts were known, he might repent. Wherefore it is said, “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 whicheateth with me shall betray me.”.
That is, Judas, who when the others were sad and held back their hands, puts forth his hand with his Master into the dish. And because He had before said, One of you shall betray me, and yet the traitor perseveres in his evil, He accuses him more openly, without however pointing out his name.