Based on evidence from the opening scene and the scene about the chestnuts and the sailor's wife in act i scene iii, the reader can conclude: "the witches have evil tendencies and will likely harm Macbeth in some way".
<h3>King of Scotland in Act 1 and 2 Summary:</h3>
King Duncan of Scotland seeks information from a wounded captain at a military outpost close to his palace at Forres regarding the conflict between the Scots and the Irish invaders, led by the rebel Macdonwald.
The captain responds that the Scottish generals Macbeth and Banquo battled with tremendous heroism and ferocity while assisting Duncan's son Malcolm in escaping captivity by the Irish.
Duncan is next given a description by the captain of how Macbeth killed the treacherous Macdonwald.
The thane of Ross, a Scottish nobleman, enters and informs the king that the treacherous thane of Cawdor has been vanquished and the army of Norway has been repulsed as the captain is being brought away to receive treatment for his injuries.
Duncan orders the execution of Cawdor's thane and the granting of Cawdor's throne to Macbeth, the army's hero. Ross departs to tell Macbeth the news.
To know more about act 1 and act 2 of macbeth, here
