Politics for a Christian, in my opinion, is primarily an act of apologetics. There’s nothing wrong with participating in society simply because you are a member of that society, but as Christians, we have a duty to participate in society *as representatives of Jesus Christ* This means that very little of what we do in public is morally neutral.
As I said yesterday, we have a calling to be both salt and light. As salt, we have a responsibility to intervene and actively bring corruption to a halt (see: preservative). As light, we have a responsibility to instruct the world on the difference between sin and righteousness. Often we get to do both at the same time.
OMF Serge makes this same point with much better clarity than I could over at [Imago Dei](http://www.imago-dei.net/) in his series on [The Myth of Moral Neutrality](http://www.imago-dei.net/imago_dei/2005/02/the_myth_of_mor.html). For one thing he has concrete examples.
Hat tip: [New Covenant](http://newcovenant.blogspot.com/)
neumatikos 