Shakespeare uses potent words in the soliloquy of 3.1, to express Macbeth’s resentment for Banquo’s prophecy. We can see that when Shakespeare writes: “for Banquo’s issue have I filed my mind.” Meaning, Macbeth has murdered Duncan (in purpose of becoming the new king), solely for Banquo’s sons’ welfare. Shakespeare moreover uses the word “issue” by meaning Banquo’s descendants. Having that in mind, Shakespeare, uses this to interpret how the murder of gracious Duncan was fulfilled for the sake of someone else’s heir, and because of that Macbeth’s mind has been “filed”. The word “filed” means damaging the integrity or purity of something, in this context Macbeth’s life was considered to be ‘pure’. From that, we can indicate that this matter
