How do I add contextual knowledge about the text into my answers?

Contextual knowledge includes all kinds of things that give a background of the text, for example why it was written, what belief system it is situated in, what historical events influenced the writer. The point of including it in your answers is to show that you have a deeper understanding of the text and show that you understand its broader significance for society. Whenever you want to make a point about the text, you should think about how that point relates to your contextual knowledge of it, and whether any of it can help to provide a reason for the points significance and show that you can link ideas together. If you think of something, put it in so that the point gets a deeper support and links to the wider culture around the text. To find contextual information, you need to immerse yourself in the history and ideas that surround the text, and draw on them to make links.