Is there such a thing as "religious music" (not including works in which the lyrics or libretti deal with relgious subjectes, such as Händel's Messiah, or Bach's various oratorios), beyond looking at something through hindsight and deciding that it satisfies whatever the listener thinks "religious music" should sound like?

Rózsa obviously composed scores for a lot of films with religious (and tangentially religious) subjects, but did he write "religious music," or music that's merely, and of essence, dramatic? Just because a melody he employed may be of the time and place the story dictates (and no one hewed more closely to that sort of scholarship than Rózsa), does that makes it "religious" (is, for instance, the Hebraic melody Rózsa assigned Rebecca in IVANHOE "religious," or merely a cultural identification)?

It's a matter of semantics, of course, but, in the end, music can't be "religious" any more than food can be "healthy." People are either healthy, or unhealthy, because the food they eat is either healthful or not (or they eat healthily -- the verb form -- or not); similarly, only human beings -- either listeners, or composer, or both --can be religious, but the music can only be deemed appropriate or inappropriate for exercises in religion, be it worship, a concert, or a motion picture.