I'll admit when it comes to searching the KJV Bible, I primarily dig out my copy of SwordSearcher. The main reason is, I love how easy it is to search the Bible with it:
    
        https://www.swordsearcher.com/features/go-to-verse-and-search-bar.html
    
A clean, drop-down menu shows me related words and even phrases and even gives me the number of results before I run the search. 
It's also able to do this without AI.
I would love to see a similar feature in Logos, but across-the-board that works with all Bible versions.
I can't tell you how many times this has been useful at helping me pinpoint a Bible search and how valuable it would be in Logos (since SwordSearcher is Windows only, I have to boot up a Windows VM just to run it, whereas I primarily use Logos directly on my Mac).