A contemporary or modern audience may accept that violence is acceptable (even sometimes admirable) in war or when defending one’s country. At the beginning of the play, Macbeth’s violence could then be viewed as noble: he is described as killing a traitor and defending Scotland and its king. However, the play was written at a time when the king was widely believed to be God’s representative on Earth. Therefore, Macbeth’s later act of regicide (the killing of a rightful king) would have been seen as the ultimate crime, so his murder of Duncan marks his moral downfall. Indeed, the murder of Duncan is performed off-stage since a contemporary audience would have viewed the killing of a king as a horrific crime.