Similarly one may ask, why did Lady Macbeth convince Macbeth to kill Duncan?
Lady Macbeth wants Duncan dead because of her own power-hungry ambitions. If Duncan is killed, and Macbeth is made king, then she will be made queen. Macbeth becoming king and her becoming queen might happen without Duncan's murder, too.
Secondly, in what scene does Lady Macbeth convince Macbeth to kill Duncan? Lady Macbeth gives this soliloquy in Act 1, scene 5, while waiting for King Duncan to arrive at her castle. She's determined that Duncan must be murdered, and asks for help from the spirits to give her the courage she needs to kill him.
Likewise, people ask, how does Lady Macbeth convince Macbeth to kill Duncan quotes?
Lady Macbeth enters and tells her husband that the king has dined and that he has been asking for Macbeth. Macbeth declares that he no longer intends to kill Duncan. Lady Macbeth, outraged, calls him a coward and questions his manhood: “When you durst do it,” she says, “then you were a man” (1.7. 49).
Why does Lady Macbeth change her mind about killing Duncan?
Lady Macbeth does stress that she would have killed King Duncan herself had he not resembled her father as he slept. This indicates that she a murderous heart. She could not bring herself to stab King Duncan only because he looked like her father as he lay sleeping.
