Mark 14:16-20

And his disciples went forth, and came into the city, and found as he had said unto them: and they made ready the passover.

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.