 Recent work on Pascalian wagering has a bearing on work on the nature of faith (is it voluntary or involuntary?), its value (when, if ever, is it a virtue?), and relation to evidence (insofar as faith involves belief, is it possible to have faith without evidence?). For an overview and promising analysis, see Chappell (1996), Swinburne (1979), and Schellenberg (2005). A promising feature of such new work is that it is often accompanied by a rich understanding of revelation that is not limited to a sacred scripture, but sees a revelatory role in scripture plus the history of its interpretation, the use of creeds, icons, and so on (see the work of William Abraham [1998]).