The Murder Of Duncan In William Shakespeare's Macbeth

In the beginning of the play Macbeth has been described as fair and just until he is delivered news about his future. Since being told that he is Thane of Cawdor, Macbeth sends a letter his wife, Lady Macbeth telling her “...before, these weird sisters saluted me, and referred me to the coming on of time with ‘Hail, king that shalt be!” (I.v.8-9). When Lady Macbeth reads this letter, she has devised a plan to get the throne for Macbeth. Here in the play is where we start to see an outside source overcome Macbeth. Macbeth does not want to go through with the plan telling himself “...I have no spur, to prick the sides of my intent, but only vaulting ambition which o’erleaps itself and falls on the others” (I.vii.25-8), yet Lady Macbeth pushes him into killing King Duncan. Lady Macbeth draws back Macbeth’s attention to their plan by insulting his manhood saying “What beast was ’t, then that made you break this enterprise to me? When you durst do it, then you were a man;”(I.vii.47-49) Later into the night Macbeth has come back from killing King Duncan, calling to her “I have done the
Didst thou not hear a noise?” (II.ii.14) Regardless of Macbeth’s inner thoughts or beliefs, he has already killed someone, therefore Lady Macbeth’s corruption has been planted into Macbeth and can only grow from this