In Macbeth, what are some quotations that express Macbeth's betrayal of Banquo?

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In a soliloquy in act 3, scene 1, Macbeth states that Banquo is a threat to him, beginning a train of thought that will lead to Macbeth betraying Banquo:

Our fears in Banquo
Stick deep, and in his royalty of nature
Reigns that which would be feared. 'Tis much he dares,
And to that dauntless temper of his mind
He hath a wisdom that doth guide his valor
To act in safety
He goes on to ruminate that Banquo's sons will inherit the crown, and Macbeth expresses resentment that he has murdered the good King Duncan only to pass the throne to offspring who are not his own. He says this disturbs his peace, another indication he is working himself up to betray Banquo:
For them the gracious Duncan have I murdered;
Put rancors in the vessel of my peace
Macbeth completes his betrayal when he depicts Banquo to the murderers as one who oppressed and held them down and then blamed Macbeth. He tells them they need to right the score by killing Banquo, their "enemy," and that he, Macbeth, will be sick until Banquo is dead. He states:
And I will put that business in your bosoms,
Whose execution takes your enemy off,
Grapples you to the heart and love of us,
Who wear our health but sickly in his life,
Which in his death were perfect.
We see in this betrayal Macbeth increasingly losing his moral compass as he sacrifices his former close friend to his fears and ambitions. As Macbeth predicts before he murders Duncan, one bloody deed leads to another.
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At the beginning of Act 3 in Macbeth, Macbeth expresses his fears in Banquo.  The witches' prophecy has already come true in full for Macbeth, and now he fears that the witches' prophecy for Banquo will also come true.  In his soliloquy in Act 3 Scene 1, Macbeth admits that Banquo has a "royalty of nature" that prevents him from acting rashly, selfishly, and unwisely.  Macbeth knows that Banquo is a good man, but this does not prevent Macbeth from deciding to plot against him.  By the end of his soliloquy, Macbeth wishes to change the course of fate by having Banquo and Fleance murdered as they ride from Inverness that night.  Here, Macbeth betrays Banquo who is a good man and a loyal soldier so that he can be secure on the throne and continue to follow his ambitions.

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