"Instrument of darkness, tell us truth: win us with honest trifles, to betray" - Banquo
Overall, this shows that banquo is aware of the reality of the witches' intentions: to cause chaos.
This contrast with the Macbeth 'tell me more'
Uses Banquo to showcases show the typical Jacobean audience should react to the potential danger of the witches.
Context: banquo is though to be related to James the I.
