America is simultaneously the most professedly Christian of the developed nations and the least Christian in its behavior.

The Christian Paradox (Harpers.org): "The Christian Paradox
How a faithful nation gets Jesus wrong | Posted on Wednesday, July 27, 2005. What it means to be Christian in America. An excerpt. Originally from August 2005. By Bill McKibben.

Only 40 percent of Americans can name more than four of the Ten Commandments, and a scant half can cite any of the four authors of the Gospels. Twelve percent believe Joan of Arc was Noah’s wife. This failure to recall the specifics of our Christian heritage may be further evidence of our nation’s educational decline, but it probably doesn’t matter all that much in spiritual or political terms. Here is a statistic that does matter: Three quarters of Americans believe the Bible teaches that “God helps those who help themselves.” That is, three out of four Americans believe that this uber-American idea, a notion at the core of our current individualist politics and culture, which was in fact uttered by Ben Franklin, actually appears in Holy Scripture. The thing is, not only is Franklin’s wisdom not biblical; it’s counter-biblical. Few ideas could be further from the gospel message, with its radical summons to love of neighbor. On this essential matter, most Americans—most American Christians—are simply wrong, as if 75 percent of American scientists believed that Newton proved gravity causes apples to fly up.
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And therein is the paradox. America is simultaneously the most professedly Christian of the developed nations and the least Christian in its behavior. That paradox—more important, perhaps, than the much touted ability of French women to stay thin on a diet of chocolate and cheese—illuminates the hollow at the core of our boastful, careening culture.
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In 2004, as a share of our economy, we ranked second to last, after Italy, among developed countries in government foreign aid. Per capita we each provide fifteen cents a day in official development assistance to poor countries. And it’s not because we were giving to private charities for relief work instead. Such funding increases our average daily donation by just six pennies, to twenty-one cents. It’s also not because Americans were too busy taking care of their own; nearly 18 percent of American children lived in poverty (compared with, say, 8 percent in Sweden). In fact, by pretty much any measure of caring for the least among us you want to propose—childhood nutrition, infant mortality, access to preschool—we come in nearly last among the rich nations, and often by a wide margin. The point is not just that (as everyone already knows) the American nation trails badly in all these categories; it’s that the overwhelmingly Christian American nation trails badly in all these categories, categories to which Jesus paid particular attention. And it’s not as if the numbers are getting better: the U.S. Department of Agriculture reported last year that the number of households that were “food insecure with hunger” had climbed more than 26 percent between 1999 and 2003.
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Despite the Sixth Commandment, we are, of course, the most violent rich nation on earth, with a murder rate four or five times that of our European peers. We have prison populations greater by a factor of six or seven than other rich nations (which at least should give us plenty of opportunity for visiting the prisoners). Having been told to turn the other cheek, we’re the only Western democracy left that executes its citizens, mostly in those states where Christianity is theoretically strongest. Despite Jesus’ strong declarations against divorce, our marriages break up at a rate—just over half—that compares poorly with the European Union’s average of about four in ten. ... Teenage pregnancy? We’re at the top of the charts. Personal self-discipline—like, say, keeping your weight under control? Buying on credit? Running government deficits? Do you need to ask?