One of the matters I sought to refute in Beauty and Joy: The Christian Nature of Music is the idea that the best art made by Christians is art with content drawn from the Bible.

Paul Westermeyer advocates - or rather assumes - this:

If you emphasise Christ’s humanity at the expense of his divinity, you might choose music that affirms our humanity - music that relates to us who are beings with bodies. If you follow this logic, the music may be rhythmic and perhaps even sensuous. Or may be the highest possible art.