One thing you don't mess with is a person's power! Jesus was a threat to the religious leaders, not a physical threat, but he threatened their pride. They loved the praise from the people and now it was going to Jesus instead of them and they didn't like it! After the raising of Lazarus they plotted to kill him but that wasn't all, they wanted Lazarus killed too because he was the reason the people were flocking to Jesus! By the end of the week they would accomplish their goal...Jesus would be crucified.