The identification of the 45th president with an ancient Middle Eastern potentate isn’t a fringe thing. “The Trump Prophecy” was produced with the help of professors and students at Liberty University, whose president, Jerry Falwell Jr., has been instrumental in rallying evangelical support for Mr. Trump. Jeanine Pirro of Fox News has picked up on the meme, as has Ron Dermer, the Israeli ambassador to the United States, among many others.

As the Trump presidency falls under siege on multiple fronts, it has become increasingly clear that the so-called values voters will be among the last to leave the citadel. A lot of attention has been paid to the supposed paradox of evangelicals backing such an imperfect man, but the real problem is that our idea of Christian nationalism hasn’t caught up with the reality. We still buy the line that the hard core of the Christian right i s just an interest group working to protect its values. But what we don’t get is that Mr. Trump’s supposedly anti-Christian attributes and anti-democratic attributes are a vital part of his attraction.

Today’s Christian nationalists talk a good game about respecting the Constitution and America’s founders, but at bottom they sound as if they prefer autocrats to democrats. In fact, what they really want is a king. “It is God that raises up a king,” according to Paula White, a prosperity gospel preacher who has advised Mr. Trump.

Ralph Drollinger, who has led weekly Bible study groups in the White House attended by Vice President Mike Pence and many other cabinet members, likes the word “king” so much that he frequently turns it into a verb. “Get ready to king in our future lives,” he tells his followers. “Christian believers will — soon, I hope — become the consummate, perfect governing authorities!”

The great thing about kings like Cyrus, as far as today’s Christian nationalists are concerned, is that they don’t have to follow rules. They are the law. This makes them ideal leaders in paranoid times.