In the beginning, Macbeth is depicted as a loyal and valiant general, celebrated by King Duncan for his bravery in battle. The first scene portrays him as a courageous and honorable individual, respected by both his peers and his king. However, the encounter with the three witches plants the seeds of ambition in his mind, and he starts to entertain the possibility of becoming king himself.
As the two scenes progress, we witness a significant transformation in Macbeth's character. He becomes consumed by his desire for power and willing to commit heinous acts to achieve his goal. He rationalizes his actions, convincing himself that they are necessary to secure his position and protect his future. However, his conscience begins to weigh on him, and he experiences feelings of guilt, remorse, and fear.
The murder of King Duncan marks the turning point in Macbeth's moral decline. After the deed is done, he becomes paranoid, haunted by visions and hallucinations. He loses his sense of morality and humanity, becoming ruthless and tyrannical. His interactions with Lady Macbeth further reveal the extent of his moral decay as she becomes increasingly unhinged by their actions and eventually succumbs to madness.
In conclusion, scenes 1 and 2 demonstrate a clear fall from grace for Macbeth. He begins as a noble and respected warrior but succumbs to his dark desires and the influence of evil. His moral decline is evident in his willingness to commit murder, his loss of empathy and guilt, and his descent into madness. This rapid transformation sets the stage for the tragic consequences that follow in the later acts of the play.