Not all uses of religion are straight, of course. Many modern and postmodern texts are essentially ironic, in which the allusions to biblical sources are used not to heighten continuities between the religious tradition and the contemporary moment but to illustrate a disparity or disruption.
By this do they mean some modern books quote the Bible in a mocking, ironic way? I think this statement is overall true—nowadays people may quote the Bible but not in the intention of referencing someone solely for a religious purpose.
