Motifs of Guilt Hunter Banknell and Tia Akerman
"Will it not be received... we have mark'd with blood those sleepy two..." (1.7.556-557) This quote from Macbeth explains how they plan to frame the guards to cover their guilt.
"Will all great Neptune's ocean wash this blood clean from my hand?" (2.2.724-725) This quote can go two ways, blood and water. The quote explains that no matter how much water they use they can never wash away the guilt of what they've done.
"So brainsick of things, go get some water and wash this filthy witness from your hand." (2.2.704-707) Lady Macbeth thinks that blood is symbolic of guilt, therefore if you wash your hands you are clean from the murder.
"A little water clears us of this deed." (2.2.729) This quote is the same as the one seen above. She thinks that if you wash your hands you are clean of the deed.
"It will have blood; they say, blood will have more blood." (3.4.1425) Murder will cause more murder, no one is innocent, everyone will be guilty.
"... For the blood-batter'd Banquo smiles upon me and points at them for his..." (4.1.1699-1700) Macbeth is guilty for killing Banquo.
"My voice is in my sword: thon bloodier villian than terms can give out." (5.8.2482-2483) Macbeth is guiltier than Macduff can express with words.
"Wash your hands, put on your nightgown; look not so pale." Lady Macbeth is telling Macbeth to not look so guilty and to clean themselves of their guilt.
"It is an accustomed action with her, to seem thus washing... quarter of an hour." (5.1.2153) The gentlewoman has seen the paranoid Lady Macbeth sleepwalking because she is so guilty it affects her in her sleep.