Hello. This question is incomplete. The full question is:
"He's here in double trust: First, I am his kinsman and his subject, Strong both against the deed; then, as his host, Who should against his murderer shut the door, Not bear the knife myself."
Who speaks this line and what does it mean?
Answer:
Macbeth speaks this line, he is thinking of reasons why he should not kill Duncan.
Step-by-step explanation:
This is the moment when Macbeth lives an internal conflict because he is afraid to kill Duncan, but has a strong greed and desire to be king. He speaks this line to himself, showing how the whole situation upsets him mainly because he tries to find reasons not to kill Duncan, amid Lady Macbeth's own greed and influence.