What happened when they finished communion?

After the meal, Jesus is betrayed, arrested, tried, and then crucified. Key events in the meal are the preparation of the disciples for the departure of Jesus, the predictions about the impending betrayal of Jesus, and the foretelling of the upcoming denial of Jesus by Apostle Peter. In Matthew and in Mark they sing a song and then they went out to the Mt. of Olives where Jesus prayed until He was betrayed by Judas.