It's a bit puzzling coming from the same side of the aisle that promotes strict constructionism with the Constitution and that went hand in hand with the Christian fundamentalist movement. Both conservative and liberal religious commentators seem to agree that this is a bad idea.
Still, is it that much of a stretch to see this idea at the same time more from all parts of the political spectrum are seeking sources that reaffirm what they already believe? People already read news sources that reflect their political beliefs and seek out blogs that act as an echo chamber, so isn't politicizing spiritual texts a logical extension of this trend?
(Hat tip: Paul Krugman)