Meaning: even if you are not Roman Catholic, it looks like it should be useful material not especially stressing Catholic dogma, on the Temple and OT Messianic prophecies:
https://verbum.com/free-book-of-the-month
These books are part of the following collection and it offers more description there:
https://www.logos.com/product/20261/the-works-of-a-j-maas
And of course, should be possible to get dynamic pricing on the collection, if interested, once the freebie and plus one are secured.