Do not worry. This is just a habit of his. Maybe it is best if you all head home.
Be gone, ghost! Return to your grave!
Nobody born of woman will harm Macbeth!
I shall no longer let hesitation control my actions. I will act on impulse and do what I think is right at that time. In this case, Macduff's wife and kids must be killed!
At his royal party, guilt consumes Macbeth, as he has wild hallucinations about the ghost of Banquo. This causes much confusion among the guests, so Lady Macbeth, determined to hide the truth of Duncan's murder, suggests everyone leaves the castle.
Macbeth returns to the witches, who confirm their previous prophecy about Banquo and also reveal three apparitions. The apparitions tell Macbeth to look out for Macduff, that no one born of woman can harm him, and that he will fall when the Birnam Wood approaches. The second apparition, in particular, causes Macbeth to experience hubris, as his assurance that no one born of woman can hurt him boosts his confidence.
I am ready to serve you and the kingdom of Scotland.
Lennox arrives and informs Macbeth of Macduff’s escape to England. Macbeth then decides to act impulsively on ambition and assassinate Macduff’s wife and children. After the murders of Duncan and Banquo, this is another example of Macbeth's hamartia leading him closer to his eventual downfall.
They killed everyone. Your wife. Your children. Your servants.
At their home, Lady Macduff and her son dispute whether Macduff is a traitor, with Lady Macduff claiming her husband is "dead." In this exchange, Lady Macduff experiences anagnorisis, as she recognizes that sometimes, good is punished while evil is rewarded. Eventually, murderers hired by Macbeth arrive and kill Macduff's family.
Macduff visits Malcolm in England to convince him to replace Macbeth as king. Malcolm initially pretends to refuse but reveals he had just been testing Macduff’s trust. He then agrees to join the effort to overthrow Macbeth.
Later, Ross arrives to inform Macduff about the deaths of his family and servants back at his home in Scotland. Devastated, Macduff at first grieves but motivated by Malcolm, decides to turn his sorrow into anger that will drive him to fight Macbeth and end his reign as king.