–They don’t particularly like your theological perspective.
–The comparable titles you chose did not work for them.
–They disagree with the premise of the book.
–They have a similar book from someone else.
Some (thankfully, not most) publishing rejection-decisions are made without thoroughly considering all factors in a proposal. The editor or agent has such a backlog of proposals to consider, they simply reject because something didn’t catch their attention within seconds. If you want someone to “Just read my manuscript and I am sure you will like it,” you are asking someone to invest hours into something when they only have minutes, or seconds to spare. As an agent, I’ve had a proposal rejected by a publisher because:–The publisher already had a similar themed book, published twenty years ago. (If applied to every proposal, no new book would ever be published)
–The publisher already had several books with a certain word in their title, also found in the title of the proposed book. (Maybe change the title?)
–A publisher didn’t connect with the twenty-word short description provided in the proposal.
–A publisher didn’t connect with my short email cover note to the proposal. (I guess I shouldn’t have used the phrase, “I hope your weather is nice.”)
Consider this as a possibility: The answer to every proposal is “no thank you” until the agent or publisher sees something requiring they respond positively. If you start slowly or badly, you will need to get to the good stuff quickly or else. This is the result of an over-heated “audition” process which requires every decision-maker trust their first impression, jump to conclusions, and make quick decisions. This is part of the reason just about every best-selling book or author has been rejected by multiple agents or publishers before finding a literary home. It also reveals the effect of what happens when an agent representing a few dozen clients at a time, gets a few thousand proposals every year, or a publisher looking for 25 new books, but has 2,000 great proposals from agents to consider. If you insist on getting to the bottom of every rejection, be ready to hear reasons which are neither helpful or inspiring. More proof publishing is not a scientific venture. It’s a lot more like being a parent than anything else. You can do everything right, teaching right and wrong and encouraging proper behavior, but your little one still flushes your smartphone down the toilet for no good reason.