Macbeth fears to kill Duncan. He must kill the king to have some punishment for him, for that reason, he tries to persuade himself against duncan's death. For that, he starts to think about how Duncan is a good, beloved and wise king who has brought good fruits to his country. He also reflects on how Duncan has been a good friend to him, always faithful, respectful and charitable. However, Macbeth's greatest fear is the consequences that this death can bring to him. At this point, he already shows that Duncan's death disturbs him and that he fears this disturbance (which even accompanies him for much of the narrative). However, his ambition and his wife's influence are stronger than Macbeth's fears, so he fails to act against Duncan's murder.
