Christian nationalists do not seem to consider that Christian magistrates or the laws that they write and enforce could ever have unintended consequences. If the advocates of Christian government ever read about the PREWAR consensus, the period that runs from 1870 to 1940, not only might they encounter Machen, the Presbyterian controversy, Progressivism, and liberal Presbyterianism, they might also have second thoughts when pining for a Christian government and laws that support Christian norms.

One example of Christian government encouraging religion for the public good is prayer and Bible reading in public schools. For some Protestants, these practices look wholesome and straightforward: a little dip into the Bible and a prayer at the beginning of the school day; what could possibly go wrong?

Machen supplied an answer:

I think I am just about as strongly opposed to the reading of the Bible in state-controlled schools as any atheist could be.

For one thing, the reading of the Bible is very difficult to separate from propaganda about the Bible. I remember, for example, a book of selections from the Bible for school reading, which was placed in my hands some time ago. Whether it is used now I do not know, but it is typical of what will inevitably occur if the Bible is read in public schools. Under the guise of being a book of selections for Bible-reading, it really presupposed the current naturalistic view of the Old Testament Scriptures.

But even where such errors are avoided, even where the Bible itself is read, and not in one of the mistranslations but in the Authorized Version, the Bible still may be so read as to obscure and even contradict its true message. When, for example, the great and glorious promises of the Bible to the redeemed children of God are read as though they belonged of right to man as man, have we not an attack upon the very heart and core of the Bible’s teaching? What could be more terrible, for example, from the Christian point of view, than the reading of the Lord’s Prayer to non-Christian children, as though they could use it without becoming Christians, as though persons who have never been purchased by the blood of Christ could possibly say to God, ‘Our Father, which art in Heaven’? The truth is that a garbled Bible may be a falsified Bible; and when any hope is held out to lost humanity from the so-called ethical portions of the Bible apart from its great redemptive core, then the Bible is represented as saying the direct opposite of what it really says. (On the Necessity of the Christian School)

Somehow Christian nationalists would have us believe that even of public school superintendants might garble the Bible, the Speaker of the House or the Secretary of State will not?

To borrow a line from Harry Emerson Fosdick, “what incredible folly.”