As the government of the United States is not in any sense founded on the Christian Religion, — as it has in itself no character of enmity against the laws, religion or tranquility of Musselmen — and as the said States never have entered into any war or act of hostility against any Mehomitan nation, it is declared by the parties that no pretext arising from religious opinions shall ever produce an interruption of the harmony existing between the two countries.

As the government of the United States is not, in any sense, founded on the Christian Religion,—as it has in itself no character of enmity against the laws, religion or tranquility of Musselmen … it is declared … that no pretext arising from religious opinions shall ever produce an interruption of the harmony existing between the two countries.

The government of the United States is not, in any sense, founded on the Christian religion.

It is contended by many that ours is a Christian government, founded upon the Bible, and that all who look upon the book as false or foolish are destroying the foundation of our country. The truth is, our government is not founded upon the rights of gods, but upon the rights of men. Our Constitution was framed, not to declare and uphold the deity of Christ, but the sacredness of humanity. Ours is the first government made by the people and for the people. It is the only nation with which the gods have had nothing to do. And yet there are some judges dishonest and cowardly enough to solemnly decide that this is a Christian country, and that our free institutions are based upon the infamous laws of Jehovah.

I have made it clear that America will not base our entire foreign policy on reacting to terrorism. Instead, we’ve waged a focused campaign against al Qaeda and its associated forces — taking out their leaders, denying them the safe havens they rely on. At the same time, we have reaffirmed again and again that the United States is not and never will be at war with Islam. Islam teaches peace. Muslims the world over aspire to live with dignity and a sense of justice. And when it comes to America and Islam, there is no us and them, there is only us — because millions of Muslim Americans are part of the fabric of our country. So we reject any suggestion of a clash of civilizations. Belief in permanent religious war is the misguided refuge of extremists who cannot build or create anything, and therefore peddle only fanaticism and hate. And it is no exaggeration to say that humanity’s future depends on us uniting against those who would divide us along the fault lines of tribe or sect, race or religion.

We [the U.S.] think nothing…of attempting to inflict upon other peoples forms of government ill-tailored to their needs.

The Founding Fathers of the United States understood the risk of tribal religious conflict very well. George Washington observed, “Of all the animosities which have existed among mankind those which are caused by difference of sentiments in religion appear to be the most inveterate and distressing and ought most to be deprecated.” James Madison agreed, noting the “torrents of blood” that result from religious competition. John Adams insisted that “the government of the United States is not in any sense founded on the Christian religion.” America has slipped a bit since then.

The United States is not a Christian nation any more than it is a Jewish or Mohammedan Nation.

We in the United States, above all, must remember that lesson [of the Holocaust], for we were founded as a nation of openness to people of all beliefs. And so we must remain. Our very unity has been strengthened by our pluralism. We establish no religion in this country, we command no worship, we mandate no belief, nor will we ever. Church and state are, and must remain, separate. All are free to believe or not believe, all are free to practice a faith or not, and those who believe are free, and should be free, to speak of and act on their belief.

... the fact is that while we have become the most religious of any of the predominantly Christian first world nations, (due to repeated surges in rural revivalism) the US in its infancy was once the most secular government in history. The original colonies were primarily peopled by refugees fleeing religious persecution in other countries. But almost upon arrival, the Puritans only continued that practice against native Shaman, then against Quakers, and even each other –over religious differences. Catholics to the South were even worse! The founding fathers however were largely Deists, the least devout form of theism. They were brilliant men who knew better than to let religion rule over law because theocracy has in all instances almost automatically violated human rights and it inevitably always does. Consequently, the irreligious and non-Christian framers of the American Constitution produced the first government ever to grant all its citizens the right to religious freedom, and they did so by forbidding the government from sponsoring or promoting one religion over any other. Because it is not possible to have freedom of religion without having freedom from religion.

The specter of single-issue religious groups is growing over our land. … One of the great strengths of our political system always has been our tendency to keep religious issues in the background. By maintaining the separation of church and state, the United States has avoided the intolerance which has so divided the rest of the world with religious wars.

America rejects bigotry. We reject every act of hatred against people of Arab background or Muslim faith. We reject the ancient evil of anti-Semitism, whether it is practiced by the killers of Daniel Pearl, or by those who burn synagogues in France. We reject every act of hatred against people of Arab background or Muslim faith. America values and welcomes peaceful people of all faiths; Christian, Jewish, Muslim, Sikh, Hindu and many others. Every faith is practiced and protected here, because we are one country. Every immigrant can be fully and equally American because we're one country. Race and color should not divide us, because America is one country.

Let me speak plainly: The United States of America is and must remain a nation of openness to people of all beliefs. Our very unity has been strengthened by this pluralism. That's how we began; this is how we must always be. The ideals of our country leave no room whatsoever for intolerance, anti-Semitism, or bigotry of any kind — none. The unique thing about America is a wall in our Constitution separating church and state. It guarantees there will never be a state religion in this land, but at the same time it makes sure that every single American is free to choose and practice his or her religious beliefs or to choose no religion at all. Their rights shall not be questioned or violated by the state. — Remarks at the International Convention of B'nai B'rith, 6 September 1984

From the moment they took a republic rather than a monarchy as the shape of their government, Americans prided themselves on being a nation of peace, dedicated to the arts of commerce rather than the rapacity of empire and "the spirit of war."