Start with a question narrow enough to answer from a small group of passages. Search several forms of the key term, open each result in context, and record both relevant and apparently contrary examples. A search result is a lead, not a complete argument.
Group passages by the work each term performs in its local discussion. Compare explanations, examples, objections, and qualifications. Chapter headings and thematic guides can orient the reading, but should not replace examination of the source.
Write the conclusion with its limits visible: which passages support it, which translation decisions matter, and which manuscript or edition was checked. Keep the source references alongside each quotation so the comparison can be repeated.