I've bought and sold plenty of old books over the years, and I know quite a few people who are either full-time or part-time book dealers.
Most old books are completely worthless. In particular, old Bibles have no commercial value unless they're several centuries old (with magnificent leather bindings) and/or with direct links to famous people. Charity shops (who often employ specialists to look out for books with particular value) receive thousands of Bibles every year. Most of them are simply sent to be pulped. (Even large leather bound, Victorian editions are usually unsaleable).
Hymn books have even less value (if that's possible) than Bibles.
Every school (and many homes) will have had the works of Shakespeare and Tennyson on their shelves across several centuries. They're so common that many secondhand book shops won't touch them. If they do so, they'll be offered to the public for a pound or two (with the shopkeeper having bought them for a few pence each).
Picture books of the Queen can, if they're in particularly good condition, occasionally sell for a few pounds but (as many charity shop managers will tell you) they're so common that anyone who actually wants one already has a copy, so hardly anyone will buy them.
With the exception of antiquarian volumes full of beautiful coloured plates, the vast majority of Victorian (and earlier) books have no value. The only great 'treasures' for most book collectors are first editions penned by fairly recent authors before they'd achieved great popularity. For example, even a tatty first edition of Ian Fleming's first James Bond novel (Casino Royale) would fetch over £20,000. (If one could be found in 'mint' condition it might fetch 10 times that figure). A book from the first print run of Harry Potter and the Philosopher’s Stone is worth around £25,000.
Chris