In Macbeth, by Shakespeare this is a major theme that progresses throughout the whole play. When we hear the word “rebel” we often associate it with people who are considered “outsiders” or “different” when in fact a rebel is just anyone who stands up for what they believe in, or what they do. In the play it is clear from the beginning that the character Macbeth has deep desires for power and advancement, to become king. However, in order to achieve these goals he must find a way to take down the rebels in his path such as Banquo, Fleance, and Macduff as they are all potential threats to the throne. As the theme “Rebels must die”, or in other words taking down those who stand in the way; develop throughout the play, Macbeths’ character undergoes significant changes. Three key changes Macbeth undergoes are: state of mind changes, moral changes and his use of violence.
Right from the beginning of the play it is clear that Macbeth has a good state of mind. He was loyal to King Duncan. He was a captain in Duncan's army he even defeated the Thane of Cawdor, who was a traitor. Macbeth had clearly demonstrated to be on King Duncan's side. However, as the theme “rebels must die” develops; Macbeth realizes that he could be king if King Duncan was out of the picture. This ability to gain advancement is what strongly intrigues Macbeth, and leaves him to question murder as a possible solution, and this is just the start of Macbeth losing his good state of mind.
This can be seen when Macbeth realizes that he must either take Malcolm, the eldest son of King Duncan down or step in front of him. He says:
"The Prince of Cumberland! That is a step On which I must fall down, or else o'erleap, For in my way it lies. Stars, hide your fires; Let not light see my black and deep desires"
By saying, "Stars hide your fires," he suggests that during this process he doesn’t want attention on him. He does not want others to know the deed that he will