Anyone who has been paying attention to American public life in recent decades knows that lots of people are getting very uncomfortable with that whole First Amendment thing. Many people are especially uncomfortable with free, even offensive speech about religion in any setting connected with government, public life, tax dollars, etc. Some even act as if religious speech is uniquely dangerous, in comparison with speech about other topics.
This is a serious issue and one that journalists cannot avoid covering, in these times.
The key church-state principle is that the government is not supposed to favor a particular religion. Thus, state officials are supposed to avoid getting involved in decisions — “entangled” is the big word — about which religions and doctrines are acceptable and which ones are not. They are supposed to err on the side of free exercise, but without allowing officials to openly favor one set of religious doctrines over another.