It is concluded: Banquo, thy souls's flight, if it find heaven, must find it out tonight.
True, my lord.
Act 3, Scene 2
O, full of scorpions is my mind, dear wife!
But in them nature's copy's not eterne.
Act 3, Scene 3
There's but one down; the son is fled.
Banquo becomes suspicious of Macbeth, which worries him. He starts plotting to kill him.
Act 3 Scene 4
Thou canst not say I did it. Never shake thy glory locks at me.
Lady Macbeth and Macbeth discuss how the events have troubled them and how to deal with it.
Act 3 Scene 5
Hath been but for a wayward son, spiteful and wrathful; who, as others do.
Banquo was killed and Fleance fled the scene.
Act 3 Scene 6
The gracious Duncan was pitied of Macbeth.
The son of Duncan, from whom this tyrant holds the due of birth, lives in the English court.
After Macbeth learns the news of Banquo's death he has a banquet and sees his ghost. He starts shouting at Banquo and causes a scene. To keep the guests from pressing him, Lady Macbeth tells them that this is a common issue of his and they should not bother him.
You shall offend him and extend his passion. Feed, and regard him not.
The three witches meet Hecate, their leader, and she is angry with them. She calls Macbeth a wayward son, and believes that they are wasting time with him. She wants them to be spreading evil not focusing on Macbeth.
Lennox and the Lord talk about the murders and mention how Macduff did not show up to the banquet.