In the play "Macbeth," both the witches and Lady Macbeth were responsible for Macbeth's downfall. Macbeth was at first a noble, loyal man who would never harm his king. However, the witches' foretelling gave Macbeth greater ambition and desire to become king himself, and Lady Macbeth's manipulation and insistence led him to commit the murders needed to fulfill this heightened ambition.
Macbeth was a noble and loyal man, who would never harm his King. If it wasn't for the influences of the people surrounding him, he would have lived happily as Thane of Cawdor, an honourable title in itself. The downfall of Macbeth was ignited by the actions by those around him, mainly the witches and his wife Lady Macbeth, and eventually, his ambitions took over. Macbeth never had the intention of killing his king, but was ultimately persuaded that it was the correct thing to do.
The three witches planted the seed of ambition within Maceth.
They were the driving force behind Banquo and King Duncan's killing. The witches prophesised that his life would completely change, by becoming thane of cador and king .