Each topic is a theme which is a puzzle piece of the Word, a segment of the gospel.
So-- Big Picture: Messiah.
- How does it relate to Him?
- How has God spoken on this?
- What am I going to do about it?
Other themes are saturates, that is, they are so much "in there" that you can't nail it down to any particular verse.
Each of these themes could easily be found by word searches on biblegateway.com or some other handy, technology driven method. However, each of these have been found the old fashioned way-- organically-- that is, through a warm body of a person, as Christ has impressed him during the process.