1- King Duncan greats Macbeth and Banquo and before Macbeth is crowned Thane of Cawdor Duncan asked if the old was has been executed yet for being a spy/trader.

2- King Duncan then gives the title of "Prince of Cumberland".

3- Macbeth then says aside " the prince of Cumberland! That is a step on which I must fall down, or else o'erleap..."