Even my close friend in whom I trusted, who ate my bread, has lifted up his heel against me. 
Psalm 41:9  written 1000 b.c.

"I am not referring to all of you.  I know those I have chosen.  I am telling you now before it happens so that when it does happen you will believe that I am he.  I tell you the truth, whoever accepts anyone I send accepts me and whoever accepts me, accepts the one who sent me."  After he had said this, Jesus was troubled in spirit and testified, "I tell you the truth, one of you is going to betray me."  His disciples stared at one another.  They were at a loss to know which of them he meant.  One of them, the disciple whom Jesus loved, was reclining next to him.  Simon Peter motioned to this disciple and said, "Ask him which one he means."  Leaning back against Jesus, he asked him, "Lord, who is it?"  Jesus answered, "It is the one to whom I will give this piece of bread when I have dipped it in the dish."  Then, dipping the piece of bread, he gave it to Judas Iscariot.  As soon as Judas took the bread, Satan entered into him.  "What you are about to do, do quickly," Jesus told him, but no one at the meal understood why Jesus said this to him.  Since Judas had charge of the money, some thought Jesus was telling him to buy what was needed for the feast or to give something to the poor. As soon as Judas had taken the bread, he went out and it was night.  John 13:18-30

While they were reclining at the table eating, Jesus said, "I tell you the truth, one of you will betray me.  One who is eating with me."  They were saddened and one by one they said to him, "Surely not I?"  "It is one of the twelve," he replied, "one who dips bread into the bowl with me.  The Son of Man will go just as it is written about him but woe to that man who betrays the Son of Man!  It would be better for him if he had not been born."  Mark 14:18-21