Modern Two Kingdoms theology has never, ever made sense to me. In very short summary, the position of Two Kingdom advocates (spearheaded by David VanDrunen) is that there is no such thing as a Christian worldview. They are emphatic that the Bible is only supposed to be used in the church and that it must not be used in issues of civil government, work, or even family.
The most absurd part is that they argue everything that is not governed by the Bible, which is everything except church, is to be governed my natural law. It does not matter if you point out to them that natural law is simply the law of God written on the hearts of all men, the same law that has been clarified for us in the Bible.
When I attempted to point this out to a Two Kingdoms advocate recently at Darryl Hart’s blog, they insisted that natural law provides us with all kinds of information necessary to live life. Because this person was a plumber, his example was plumbing:
Anyway, Christian plumbing is my turf here, your talking to a 4th generation plumber (I worked on the business end mostly though). I would argue that observation and natural revelation and all true domains of human knowledge are inextricably linked. General revelation functions to point to a Creator who sets up a functional cosmos; it also informs us on how the cosmos functions. All cosmic functions necessarily operate within the laws of nature whether they are moral or amoral. Plumbing is entirely dependent on natural revelation/natural law even though it is amoral. Let me explain…
There are many laws of nature that have to me navigated in even the most simple plumbing process such as soldering copper pipe which has taken mankind a few thousand years to master. It takes a understanding of the metallurgical properties of copper that make it desirable as a potable water delivery system: copper is malleable and resistant to corrosion and relatively abundant and easy to extract (which makes it inexpensive in relation to other non corrosive metals). Soldering itself requires an understanding of welding, which in this case requires the binding of two different metals to form a seal sufficiently tight so as to be impenetrable by water molecules, which again is governed by fundamental laws of chemistry. I could go on to explain how hydro-mechanical principles govern waterflow, but I won’t bore you with more details. I am sure though that nearly every vocational discipline, including the justice system interact so much with natural law that it would be staggering to draw out the processes in entirety.
When I pointed out that the “law” of gravity is something completely different than the law of God, and advised not to confuse the two, I received the following reply:
We must be using different dictionaries. I am really not sure how you can maintain that functionally physical laws and moral laws operate on different planes. They can be violated, but there are consequences. Yes, I do agree that natural law includes the moral code written on the human heart, but that is simply because these exist in a larger cosmic system where God created a good universe that worked just as he designed it to. It is precisely because of this that governments operate off of general revelation even if imperfectly and/or unknowingly. Why else would we have similarities in Hammurabi and Moses, Roman law and American law. Discontinuities are a given, but the commonality of law, and prevasively political nature of human history even in the absence of special revelation testifies to the sufficiency of natural law in the political arena.
I’m not making this stuff up. I suggested we go ahead and look at the dictionary, naively thinking it would help clarify things with this man:
law: 1a: a rule or order that it is advisable or obligatory to observe
synonyms law, rule, regulation, precept, statute, ordinance, canon mean a principle governing action or procedure. law implies imposition by a sovereign authority and the obligation of obedience on the part of all subject to that authority
Precept: 1 : a command or principle intended especially as a general rule of action
2 : an order issued by legally constituted authority to a subordinate official
That is what law means when we talk about the law of God and natural law. Way down in definition 6 is a different definition for things like the “law” of gravity:
6 a : a statement of an order or relation of phenomena that so far as is known is invariable under the given conditions
synonyms: see in addition hypothesis
God’s law is not God’s law because God saw what would naturally occur if we committed adultery and he wanted to protect us from those natural consequences. It is God’s law because He sovereignly imposed it on those bearing His image as a rule for what ought and ought not to be done.
Furthermore, are you suggesting that the “law” of gravity is just a statement of what ought to be done? Are you suggesting that we should all obey the law of gravity, meaning we should not violate it by floating around? I didn’t think so.
one definition is prescriptive, the other is descriptive.
The prescriptive nature of moral law is something that I believe flows from the descriptive nature of natural law…
…The prescriptive command: “Don’t jump off of a cliff” presupposes (the is) gravity. Assuming a person values his life, the moral implication of the isness of gravity is that one ought not act out in a way where gravity becomes a life-threatening reality. I would argue that the Decalogue extrapolates its prescriptions from the ises of God’s character and from the world he creates.
How else can the psalmist claim that the heavens tell of the glory of God if there is no revelatory value in nature itself that cannot be extracted from even cursory observation?
So the Decalogue is really just a hypothesis about nature. Maybe God should have submitted it to a peer review journal?
See related: Karl Popper and the Emperor’s Clothes