when macbeth encounters the witches for the second time,what do they show him?

The witches hail him as "Thane of Glamis" (his present title), "Thane of Cawdor" (the title he will soon receive officially), and "king hereafter" (46-48). Their greeting startles and seems to frighten Macbeth, but what they sat alludes to his future. When Banquo questions the witches as to who they are, they greet him with the phrases "Lesser than Macbeth and greater," "Not so happy, yet much happier," and a man who "shall get kings, though [he] be none" (63-65). When Macbeth questions them further, the witches vanish into thin air.