Here's something else to consider:
Eric Whitacre has been producing some of the most amazing choral music the world has ever seen over the past 20 years. This music has become inspirational to more people, kids, youth and adults alike, than any composer I can think of. Yet the vast majority of his work makes NO reference to religion or god.
It is worthy of note: Eric himself professes no particular faith or religious affiliation. Whether he is, in fact, an atheist or not, I don't know and I won't assume. The man writes MUSIC, and he chooses the words he wants to write to based on his own connection and rapport with those words.
I find it interesting that one of his most powerful works, "When David Heard," while taken from the old testament, is far less about a deity or worship thereof than it is about the emotion of a man who has lost his son, and at that, it is a work of devastating power and emotion. "Water Night" has qualities I would equate with some of the finest liturgical music in the repertoire, yet it mentions "a horse that trembles in the night" from the words of Octavio Paz and not some unseen, unfelt, uncaring god.
I think this is music which deserves attention ... and that's why I write about it.