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We meet the three sisters again in Shakespeare’s infamous Scottish play, the much lauded Macbeth. In the first act, when Macbeth is still King Duncan’s victorious war leader, he meets the three witches on the heath and they great him: First witch: “All hail, Macbeth! hail to thee, thane of Glamis!” Second witch: “All hail, Macbeth! hail to thee, thane of Cawdor!” Third witch: “All hail, Macbeth that shalt be king hereafter!” They have named his previous noble title, his new title, the Thane of Cawdor, gained when its rebellious former holder was executed; and the title that he does not yet have. If we understand these three hags as the ‘Wyrd,’ then they have just revealed Macbeth’s past, present, and future in chronological order.
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Evan John Jones (The Star Crossed Serpent: Volume 1 - Origins: Evan John Jones 1966-1998 The Legend of Tubal Cain)