Lady Macbeth: she worries her husband is too kind-natured to be able to take the crown however is determined to assist him. She calls on demonic spirits to help her.
Macbeth: he is not convinced, even though his ambitious thoughts led him to think about it previously, Lady Macbeth starts convincing him - this shows him as weak-willed.
Answer:
Authors usually write texts to get their point across or teach the reader a lesson. (could you provide the text for a better answer please)
Hope this helped :)
Look at context clues in your sources
