He kills Banquo to thwart the prophecy about Banquo's issue becoming kings, but it doesn't work because Fleance escapes. He kills Macduff's family because of the warning to "Beware Macduff" but it doesn't work because Macduff escapes. Both times he kills the wrong person or people.
Not long after telling Macbeth he'll become Thane of Cawdor, he is given the title. In the second set of prophecies, the witches seem to know Macbeth's castle will be stormed and how it will be taken over.
The witches predicted Macbeth's army would be defeated only if Birnam wood comes to his castle - APEX
Because the witches make him think of doing bad things, namely killing Duncan.
Macbeth did this to inform Lady M about what had happened so far.By this time,Macbeth was qualified for the throne,but it wasn't guaranteed for him to become king.
Macbeth hires the murderers to kill Banquo for two reasons. Banquo is the only person, besides Macbeth's wife, who knows about the witches' prophecies, which means that he may suspect that Macbeth killed Duncan in order to fulfill their prophecy and become King. Secondly, Banquo is prophesied to become the father of kings, which means that it will be his ancestors, not Macbeth's, who will inherit the throne. By killing Banquo, Macbeth hopes to prevent this prophecy from coming true.
Not long after telling Macbeth he'll become Thane of Cawdor, he is given the title. In the second set of prophecies, the witches seem to know Macbeth's castle will be stormed and how it will be taken over.
The Thanes (I assume that is what you meant) did not raise the army themselves, but joined an English army raised by Malcolm and his English buddies. But Macbeth didn't care because he figured he was safe because of the witches' prophecies. When those prophecies start coming true he starts to worry.
The witches predicted Macbeth's army would be defeated only if Birnam wood comes to his castle - APEX
When Macbeth saw that the witches second set of predictions were coming true, Macbeth lost it.
The Birnam wood episode in Shakespeare's Macbeth serves as a fulfillment of the witches' prophecy, adding to the atmosphere of supernatural elements in the play. It also symbolizes the theme of deceptive appearances, as the advancing soldiers use the branches to camouflage their numbers. This event contributes to Macbeth's sense of impending doom and his realization that the witches' prophecies are coming true.
The wrong people. In order to thwart the prophecy about Banquo's children becoming kings, he has Banquo killed, but not his son Fleance. Fleance will go on to become the ancestor of kings. Macbeth killed the father when he should have killed the son. Then, in order to try to thwart the prophecy about Macduff, he has Macduff's son (and wife and other children) murdered. Macduff will go on to defeat Macbeth. Macbeth killed the son when he should have killed the father.
Malcolm's plans to camouflage themselves (soliders) with tree branches from Birnam Wood, so Macbeth would not notice them coming until it was too late. This plan fulfilled one of the prophecies of the witches, that Macbeth will have nothing to fear until Birnam Wood begins to move.
The wrong people. In order to thwart the prophecy about Banquo's children becoming kings, he has Banquo killed, but not his son Fleance. Fleance will go on to become the ancestor of kings. Macbeth killed the father when he should have killed the son. Then, in order to try to thwart the prophecy about Macduff, he has Macduff's son (and wife and other children) murdered. Macduff will go on to defeat Macbeth. Macbeth killed the son when he should have killed the father.
In Act 2, Scene 3 of Macbeth, Banquo expresses his unease and suspicions about the witches' prophecies coming true for Macbeth. He also reveals his belief that Macbeth may have had a hand in King Duncan's murder. Banquo's response reflects his growing concern about Macbeth's actions and the potential consequences of the supernatural elements at play.
Because the witches make him think of doing bad things, namely killing Duncan.
Macbeth did this to inform Lady M about what had happened so far.By this time,Macbeth was qualified for the throne,but it wasn't guaranteed for him to become king.
Macbeth hires the murderers to kill Banquo for two reasons. Banquo is the only person, besides Macbeth's wife, who knows about the witches' prophecies, which means that he may suspect that Macbeth killed Duncan in order to fulfill their prophecy and become King. Secondly, Banquo is prophesied to become the father of kings, which means that it will be his ancestors, not Macbeth's, who will inherit the throne. By killing Banquo, Macbeth hopes to prevent this prophecy from coming true.