One of the more intriguing aspects of Gordon Brown's first Labour party conference speech as serving prime minister was his decision to use consciously biblical language as part of his argument against those employing religious rhetoric to oppose diversity and equality in family policy.
The issue is explored in my latest Guardian Comment-is-Free article. http://commentisfree.guardian.co.uk/simon_barrow/2007/09/keeping_faith.h... [1]
There is a further elaboration of the difference between a civic use of biblical language and the church's use to be found here [2].