Christian art is by no means always religious art. . . .

We should remember that the Bible contains the Song of Solomon, the love song between a man and a woman, and it contains David's song to Israel's national heroes. Neither subject is religious. But God's creation--the mountains, the trees, the birds, and the birds' songs--are also non-religious art. Think about that. If God made the flowers, they are worth painting and writing about. If God made the birds, they are worth painting. If God made the sky, the sky is worth painting. If God made the ocean, indeed, it's worth writing poetry about. It is worth man's while to create works upon the basis of the great works God has already created.

Francis Schaeffer, "Perspectives on Art"