"Relevant passages" refers to specific sections or parts of a text or document that are important or have direct connection to the topic being discussed or referred to. Full definition
This should be a very good way to easily highlight the most relevant passages in a textbook. (goodereader.com)
Frequently the most relevant passage is one which is least suspected. (religion-online.org)
With the transcripts, you can quickly find the points you are looking for in a presentation and focus in on a particularly relevant passage. (mauldineconomics.com)