'Thou losest labour
As easy mayst thou the interenchant air with kneel sword impress as make me bleed'
Macbeth contempt from Macduff's effort in this battle scene arises from

After the murder of Duncan , Macbeth was still dissatisfied because

'But 't is strange:
And oftentimes, to win us to our harm,
The instrument of darkness tells us truths,
Win us with honest trifles, to betrays in deepest consequences'.
These words were spoken by

Macbeth is confident that he will not be defeated in battle because

'They have tied me to a stake:I cannot fly, But bear like i must fight the course'.
Macbeth here is represented as