We've all seen the bumper stickers that say Jesus is not a Republican, and I suppose there are "Jesus is not a Democrat" bumper stickers, though I don't think I've seen one. These statements are meant to deny any political party moral superiority, of course, and obfuscate matters of morality rather than allow one political party the moral high ground.
But as Doug Wilson argues on his blog, there is such a thing as a moral, or Christian perspective on politics. Wilson recently responded to the question, "Why is it that I consistently use green as a term of contempt?" His answer demonstrates his belief that there is a Christian political ethic, and those that are outside of this ethic are not taking their baptismal vows, "which renounce the devil and all his works" seriously.
In another recent post Wilson argues that those that, "Idolaters always want to get a bit and bridle on the economy so that they can have additional leverage to compel their idolatries. In a free economy, the idols have to use persuasion only (which some of them do quite well), but idols always prefer persuasion and coercion. They like having a full tool box."
There is a Christian way to think about law and government, and there is a pagan way. It is not a matter of Republican or Democrat, but of truth or error, righteousness or unrighteousness. What this means is that we must not be beholden to anyone or anything but the Lordship of Jesus Christ, and the truth that is made manifest to us by his Holy Spirit.
Christians are too eager to defend un-Christian men and practices, in the name of God and country. I was once, and not too long ago guilty of these same things. The manner in which Christians allied themselves with George W. Bush in the past decade is perhaps the most egregious example of what I mean by this. I was among this number myself, only recently having realized my terrible error in judgment.