Macbeth is a very interesting character in William Shakespeare's tragedy of the same name, Macbeth. He, like most humans, undergoes changes throughout the duration of the play. The fact that his character and morals change throughout the performance demonstrate that he is in fact human and not purely evil. In the beginning of the play, Macbeth's murder of Duncan comes as a result of a prophesy and influence, but not after contemplation by Macbeth. Even after that murder, he still felt remorse when he struggled to sleep at night. Later, when he has Banquo, his friend, killed out of paranoia and the fear that he wasn't prophesied to be king. Near the very end of the play, right before Macbeth is killed by Macduff, Macbeth is hesitant to fight. Even thought he at times seems like he is purely evil, the fact that he shows remorse demonstrates he isn't. Also, this changing of character and views only proves that he is in fact human.
Duncan's murder is the first murder in this incredibly bloody play. However, the fact that Macbeth committed this murder couldn't be used to defend him. Macbeth requires consideration before following through on his murder. He needs to think why he shouldn't do it. In Macbeth's soliloquy in Scene 7, he debates the morality of killing Duncan. “First, as I am his kinsman and his subject, / Strong both against the deed; then, as his host / Who should against his murder shut the door”(I, VII, 13-15). Macbeth is struggling to find the morality of his potential murder. He is examining why he shouldn't commit the heinous act even though it was prophesied. His first point is that they are so close they seem to be related related should be a dead giveaway. The fact that they could be so close and have Macbeth still explore the idea of murdering him is crazy.