The first scene starts with Banquo voicing his suspicions about Macbeth killing Duncan in order
to become the King. He is aware that the witches had prophesized that his sons would become
Kings. But he doesn't let this thought obsess him. He is capable of controlling his thoughts and
checking his ambitions unlike Macbeth which sets the two apart.
Macbeth enters with the others here. He announces that Banquo is to be the chief guest of the
royal banquet he's hosting tonight. Banquo promises to come but not until later after he has
returned from his ride with his son, Fleance. Then Macbeth talks of how Malcolm and Donalbain
haven't yet confessed to their deed and are making up dumb tales to support their innocence.
Macbeth needn't have told this to Banquo; his doing so shows that he is still scared that Banquo
suspects him and he wants to clear any such suspicion in Banquo's mind by repeatedly reminding
Banquo that Malcolm and Donalbain are the ones to blame.
Once everyone leaves and he's alone, Macbeth speaks out his innermost thoughts and feelings. His
tone is that of despair, insecurity and defiance towards the end of the soliloquy. "To be thus is
nothing; / But to be safely thus," he says. Macbeth realizes that being a King isn't all that great if
the kingship is insecure. Banquo stands as an obstacle, a potential threat to his kingship. Then
Macbeth goes on to admire Banquo and his qualities. He admires Banquo's 'nobility of character',
'loyalty', 'dauntless temper', 'daring', and his 'valour guided by his wisdom'. Here Macbeth
compares himself to Mark Antony and Banquo to Julius Caesar. This is because Antony's guiding
spirit was made timid by Caesar's just as Macbeth's is by Banquo's. Macbeth viewed himself as
inferior to Banquo in terms of bravery and character. So he took Banquo to be the biggest
potential threat to his crown.
Moreover, the three witches had prophesized that Banquo's sons would be kings. Now that he is a
King, Macbeth isn't satisfied with it. Here we can see over-ambition or unchecked ambition
because his desires always exceed the achievements and hence are unattainable. His descendants
won't get to be kings despite all that he did to gain the crown. He feels betrayed. He says in a bitter
tone that the witches merely placed 'a fruitless crown' on his head, 'a barren sceptre' in his gripe
and took away the rightful kingship from his descendants. Macbeth uses imageries here. By 'a
fruitless crown' and 'a barren sceptre', he means that this kind of kingship won't give him the fruit
that he desires - kingship for his descendants. He hates to think that he tormented his mind,
murdered the gracious Duncan and disturbed his otherwise peaceful life for the sake of Banquo's
children. "Only for them; and mine eternal jewel / Given to the common enemy of man, / To make

"O full of scorpions is my mind, dear wife; / Thou know'st that Banquo and his Fleance lives,"
Macbeth reveals to Lady Macbeth that the existence of Banquo and his son worries him. Lady
Macbeth is unaware of Macbeth's meeting with the murderers so she is confused when he says,
" there shall be done / A deed of dreadful note." But Macbeth plans to leave his Lady out on this
one. Macbeth personifies night as he calls for it to be ruthless aided by its dark agents of evil in
order to kill Banquo.
In this scene, it seems like Macbeth and Lady Macbeth have switched roles. Lady Macbeth seems
to be disintegrating from her former strong and evil self. Macbeth seems to have newfound
courage. Just as Lady Macbeth had convinced Macbeth to murder Duncan, Macbeth here
convinces the murderers against Banquo. The last speech of Macbeth is in a way similar to the one
of Lady Macbeth addressing the evil spirits. Lady Macbeth is receding into the background as
Macbeth is beginning to take front stage by acting of his own initiative without consulting his
Lady.
In the third scene, the sun is setting and it is getting dark. There are now three murderers instead
of the two that met Macbeth in the first scene. The third could have been sent by Macbeth because
he couldn't trust just the two to get the job done. To make sure that Banquo and Fleance are killed,
he could have sent an extra murderer. Banquo is killed in the murderers' ambush but Fleance
makes an escape. The murderers make their way back to report to the King. Here again, the
atmosphere plays an important role as the murder takes place at dark. Dark is the time of evil so
evil deeds are done in the dark throughout this play.
In these scenes, the audience sympathizes with Macbeth because he knows what he is doing is
wrong but there's no turning back so all he can do is move on. And one could argue that the
witches and Lady Macbeth are responsible for putting him in this fix. As we watch these scenes,
we can feel that Macbeth is gradually moving towards his inevitable doom but there's nothing we
can do about it except perhaps sympathize and this can, at times, be frustrating.
[I don't think the commentary here is very good]