I worry whether or not you have what it takes to seize the crown. You don't lack ambition, but you don't have the mean streak these things call for.
Act 3 Scene 4
I am as brave as anyone! I will never tremble in fear!
Act 4 Scene 3
Maybe you will betray me for Macbeth!
I am not treacherous
Lady Macbeth is reading a letter. The letter was from Macbeth and his interaction with the witches. They said Macbeth would be king. After reading the letter, Lady Macbeth is questioning Macbeth's ambition to do what he needs to do to become king in the fastest way which is to kill Duncan.She thinks he is way too good of person
This shortly after Macbeth had sent out murderers to kill Banquo and his son. They had a dinner at the house that Macbeth lived in. They ghost of Banquo showed up. Macbeth got mad and said he is as brave as any other man. Come at him as a Russian bear, armor plated rhino, or a tiger from Iran, and he will never tremble in fear. When Macbeth killed Duncan he felt incredibly sorry and you can see in this scene he is changing.
Malcolm knows he is going to be the next king after they take down Macbeth. He wants to test Macduffs loyalty to him. He says that maybe Macduff could be betraying Malcolm to Macbeth because Macbeth liked Macduff. And Macduff said that he is not treacherous. Malcolm is trying to see ambition in Macduff and see if he will stay loyal to him.