“No more that thane of Cawdor shall deceive, our bosom interest: go pronounce his present death, and with his former title greet Macbeth.”
Macbeth was largely devoted and loyal to King Duncan and was always looked towards others as brave, fearless and as a skilled warrior. Having been the Thane of Glamis, the prestigious title of Thane of Cawdor was given to Macbeth highlighting his worthiness and King Duncan's trust towards him having been a respected general.
"All’s too weak, for brave Macbeth—well he deserves that name— Disdaining fortune, with his brandished steel"
Macbeth, however, being a strong figure on the battlefield is easily gullible and allows himself to be manipulated by his wife who pressures him to fulfill his role as king. Listening and respecting his wife, he being more kind hearted and submissive causes him to kill King Duncan.
"We will proceed no further in this business… Art thou afeard to be the same in thine own act of valour as thou art in desire? "When you durst do it, then you were a man"
Lady Macbeth calls upon the spirits to 'unsex' her, fill her breasts with gall and to stop her menstruation cycle as she deems these traits and cycles of women make her weak making her despise all sense of feminity and fertility. Thus, she is viewed as more mascu.line and unnatural as well as believing all women cannot create grand change.
“Come you spirits that tend on mortal thoughts, unsex me here; and fill me, from the crown to the toe, top-full of direst cruelty!
Lady Macbeth being an ambitious woman knows how to emasculate and manipulate her husband by calling him feminine and telling him he isn't worthy to be kind with his current mannerisms. Having constant ulterior motives and convincng Macbeth to murder King Duncan, Lady Macbeth is sly, cruel, conniving and determined having foreseen a future with Macbeth would be unfit to sit on the throne.
“Was the hope drunk, wherein you dressed yourself? Hath it slept since? And wakes it now, to look so green and pale at what it did so freely”
King Duncan though a very noble king is not the best king or leader. Though wishing prosperity and success to his people and kingdom, his greatest weakness is his easy trust towards others allowing him to be manipulated. Moreover, though kind and generous, he is wimpy and lazy and often sits on the sidelines not fighting during wars.
"O valiant cousin! worthy gentleman! So well thy words become thee as thy wounds... They smack of honour both...worthy thane… [and] great happiness!"
Duncan not being the best king further exemplifies this when expressing his joy when winning the war fought with Norway. After giving Macbeth the title 'Thane of Cawdor', he says that he is so happy that he would cry. Crying though human and natural highlights his sensitivity as Kings are stereotypically viewed to be more tough and rigid to lead a kingdom where King Duncan is more impulsive and loose.
“My plenteous joys, Wanton in fulness, seek to hide themselves in drops of sorrow.”