To effectively govern a civil society, people develop sets of laws by which all members must abide. We start with the obvious ones: Don’t kill and don’t steal. 

From there, we work through the particulars and derivations of those rules, outlawing assaults and deciding that some forms of theft (grand theft auto, bank robbery) are worse than others (palming a pack of gum). We regulate substances, trade, education and relationships, presumably in the hope that such guidelines or restrictions will make people’s lives easier and more productive. 

As the body of laws grows, some laws that burden one group of people over another and compel them to do something contrary to their beliefs or heritage develop. At that point, we have three choices. First, we can say tough beans and enforce compliance. Second, we can re-evaluate the necessity of the law. Third, we can make an exception.

The trend in the United States has been towards the third option. In 1993, Congress passed the federal version of the Religious Freedom Restoration Act (RFRA) in response to the State of Oregon’s refusal to extend unemployment benefits to two American Indians. The State of Oregon refused on the grounds that the American Indians had ingested peyote, an illegal drug, during a religious ceremony. 

A Supreme Court decision—penned by Antonin Scalia—upheld Oregon’s judgment. 
The RFRA passed with overwhelming bipartisan support. After another Court decision limiting the scope of the RFRA to federal laws under the 14th Amendment, 21 states have passed their own versions of the RFRA with varying degrees of fidelity to the original law. 

The primary function of the law is to prohibit the government from “substantially burden[ing]” the free exercise of religion, even with a law of “general applicability,” unless the government could show both that the law is pursuant to a “compelling government interest” and that the law is the “least restrictive” method of furthering that interest. That is, it must withstand “strict scrutiny,” the most stringent test for evaluating the constitutionality of a law.

The first test of the Free Exercise Clause of the First Amendment went in front of the Supreme Court in 1878 in “Reynolds v. United States.” In Reynolds, the Court upheld an anti-bigamy law, worrying that if it granted a religious exception to the law then religious convictions would trump societal and governmental authority and every citizen would “become a law unto himself.” The Court was right. Civil society does not function well when citizens can opt out of certain rules.

However those rules should not be too onerous. We should heed John Stuart Mill’s declaration that “the only part of the conduct of anyone, for which he is amenable to society, is that which concerns others. In the part which merely concerns him, his independence is, of right, absolute.” That is, it is antithetical to our notions of liberty to restrict behavior that does not do harm to others. 

Disfavored behaviors tied to certain religious beliefs, such as the use of hallucinogens, should not be legislated against so long as they do no harm to the public. If we are to permit an exception to a law on religious grounds, we ought to strike down the law altogether. 

Seeking to control every aspect of life is illiberal, and we ought to avoid it. Otherwise we might, out of respect to religious freedom, end up with a body of laws with so many religious holes it it that it resembles Albert Hall in “A Day in the Life.”

 Lacking a definition of religious liberty in the Constitution, in the Reynolds case, the Court turned to a law passed in the Virginia House of Delegates and drafted by Thomas Jefferson to define the term. It found that the limit of religious liberty came and government could interfere “when principles break out into overt acts against peace and good order.” This should continue to be the standard against which religious liberty is measured. Obviously, the government cannot turn into the thought police, but society can and must regulate behavior in a measured and uniform way. 

In a later letter, Jefferson wrote that “religion is a matter which lies solely between Man and his God, that he owes account to none other for his faith or his worship, that the legitimate powers of government reach actions only, and not opinions” and that he and the nation would be steadfast in defense of a citizen’s right of conscience but that “he has no natural right in opposition to his social duties.” We must write our laws precisely and with a light touch so that they do not require religious exemptions and we must be careful to regulate action, not thought. 

Where we are inclined to offer an exemption, we should ask one question: Are we as a society comfortable extending this right to all, regardless of religious belief? If we answer yes, then we should realize that the law has no place in a liberal society. If the thought makes us shudder, we should consider the law one of Jefferson’s social duties, against which an individual’s claim to a natural right might be harmful to others and thus must fail.