While searching for some free books this month I noticed that only some of the Pulpit commentary can be found for free but not all. Is this by accident or by design?
https://www.logos.com/product/5768/the-pulpit-commentary
https://ebooks.faithlife.com/search?context=product&query=pulpit%20commentary&sortBy=Relevance&limit=30&filters=status-live_Status%2Bauthor-6184_Author%2Bresourcetype-faithlifeebooksclassics_Resource%20Type&ownership=all