Pathetic Fallacy is used a lot in this scene. Due to King Duncan being killed, Ross and the old man mention how although it is day, it feels more like night time. This is a perfect example of Pathetic Fallacy as it shows that the sun seases to go up because King Duncan is dead. Malcom and Donalbain have both ran away which causes them to not be heir to king now, giving MacBeth the perfect opportunity to become so.
“Gainst nature still! Thriftless ambition, that will ravin up thine own life means!” said by Ross, he is referring to Macbeth on how he has “thriftless ambition” he will go beyond his morals and values because of this ambition he has inside of him; His ambition is the a prime reason he actually went along with the murdering of Duncan.