Macbeth

While most of what became known as witchcraft was invented by Christians, certain elements of witchcraft did represent an older pagan tradition. Witchcraft was linked and even considered to be synonymous with "divination," which means not only the art of foretelling the future, but also the discovery of knowledge by the aid of supernatural power. It suggests that there is such power available- something orthodox Christians insisted could only be the power of the devil, …

…the witches prophesies, he is tempted and refuses to listen to reason from Banquo. When the second set of prophesies Macbeth receives begin to show their faults Macbeth blames the witches for deceiving him with half truths. While the witches are not totally responsible for the actions of Macbeth, they are responsible for introducing the ideas to Macbeth which in turn fired up Macbeth's ambition and led to a disastrous and unnecessary chain of events.