Frankly, the problem we are having now is about jurisdiction. The family, the church, and the government each have different jurisdictions, and every time we get jurisdiction mixed up, we end up with a mess: social security, welfare, medicaid, the Fed, public education, and drug wars, to name a few.
So, Biblically speaking, what are the jurisdictions of each? The family is charged with child-rearing, provision for its own poor, elderly, and infirm, wealth-building, and dominion-taking. (Gen. 1:28, Deut 8:18, Eph 6:1-3, I Tim 5:8) The church is charged with spreading the Gospel, preaching the Word, administering the sacraments, administering church discipline, and feeding the poor. (Matt 28:16-20, Matt. 18, I Cor. 5, I Tim. 4:13-15) The government is charged with bearing the sword and punishing evil-doers. (Romans 13) When these entities cross their jurisdictions, we get trouble.
What trips up most of us believers is that we think it is the government's job to legislate morality. It is not; that is the church's job and then just among its members. It is not for the government to tell me how to treat my temple. That is for the church (the true church, of course, which is founded on the written Word of God). When we cross the line from harming ourselves to harming other people, then it becomes the jurisdiction of the government.
Jesus tells us in Matthew 18 (and Paul follows it up in I Cor. 5) how to handle one of our own who is morally failing. So, if a sheep is an addict, we don't want the police to show up and haul him off to jail. Instead, we begin the process of restoration/reconciliation. At every step, the goal is to reign in the wayward brother and bring him to a state of repentance over his sin of addiction. Note, however, that the final step is handled by the church government, not by individuals. Again, we must work with Biblical jurisdictions. But if a brother murders someone, that is the time for the government to come in and bear the sword. Even if the brother repents, he must pay for his crime. And a just government will make sure that he does.
So why am I a fan of the Libertarian Party? The Republican Party has become too much like the Democratic Party. Once upon a time, the GOP was the party of small government and fiscal responsibility. But their Patriot Act demonstrates their willingness to become as intrusive as the Democrats would like; and their spending at the end of the Bush administration demonstrates they are as fiscally irresponsible as the Dems. Runaway inflation, anyone? As for the Constitution Party, I have a problem with the theonomic views of many in that party.
The Libertarian Party is the only one that understands jurisdiction. But I'll settle for a Ron Paul Republican.