As, by the strength of their illusion, shall draw him on to his confusion: He shall spurn fate, scorn death, and bear his hopes 'bove all wisdom, grace and fear: And you all know security is mortals' chiefest enemy.
Act 3, Scene 6
May soon return to this our suffering country under a hand accursed!
I'll send my prayers with him!
Act 3, Scene 2
O, full of scorpions is my mind, dear wife!
You must leave this.
The above scene shows Hecate appearing to the three witches and foreshadowing many later events in the play. She says that she will give Macbeth a false sense of security to attack him when he is vulnerable. (III.v.28-33)
More people are beginning to see Macbeth as a tyrant and are becoming more suspicious as to Duncan's murder. Macduff is now the most loyal to Scotland and is seeking help for their country. (III.vi.51-53)
Above, Macbeth expresses his discomfort with his safety as king. He does not reveal to Lady Macbeth his plans which is ironic due to the fact that Lady Macbeth was the one to encourage him to murder Duncan in the first place. (III.ii.39-40)