Do you feel uncomfortable with Romans at your back?
 Are you thinking this is not exactly what you’d planned?
 Are you thinking, This looks bad, but someday soon He’ll see
 I was right to use my knowledge of Gethsemane.
  
 Possible you don’t recall what, months ago, He said:
 that the Christ must first be killed and then rise from the dead.
 In the sacred city He’d be turned in to the priests,
 then to the Gentiles to be killed – do you not feel unease?
  
 Just hours ago He broke the news that He would be betrayed.
 You’re certain He did not mean you … but why are you afraid?
 If you would only think it through!  But you’re set on your track,
 although you look uncomfortable with Romans at your back.
  
 Don’t think about it, Judas.
 You’ve begun – now see it through.
 There’ll be time for thinking later when you’re swinging from a noose. 

Again He took the twelve aside and told them what was going to happen to Him. “We are going up to Jerusalem,” He said, “and the Son of Man will be betrayed to the chief priests and teachers of the law.  They will condemn Him to death and will hand Him over to the Gentiles, who will mock Him and spit on Him, flog Him and kill Him.  Three days later He will rise.”
Mark 10:32-34

As soon as Judas had taken the bread, he went out.  And it was night.
John 13:30