The liberty of man is not safe in the hands of any church. Wherever the Bible and sword are in partnership, man is a slave.
All laws for the purpose of making man worship God, are born of the same spirit that kindled the fires of the auto da fe, and lovingly built the dungeons of the Inquisition. All laws defining and punishing blasphemy -- making it a crime to give your honest ideas about the Bible, or to laugh at the ignorance of the ancient Jews, or to enjoy yourself on the Sabbath, or to give your opinion of Jehovah, were passed by impudent bigots, and should be at once repealed by honest men. An infinite God ought to be able to protect himself, without going in partnership with State Legislatures. Certainly he ought not so to act that laws become necessary to keep him from being laughed at. No one thinks of protecting Shakespeare from ridicule, by the threat of fine and imprisonment. It strikes me that God might write a book that would not necessarily excite the laughter of his children. In fact, I think it would be safe to say that a real God could produce a work that would excite the admiration of mankind.

They knew that to put God in the constitution was to put man out. They knew that the recognition of a Deity would be seized upon by fanatics and zealots as a pretext for destroying the liberty of thought. They knew the terrible history of the church too well to place in her keeping or in the keeping of her God the sacred rights of man. They intended that all should have the right to worship or not to worship that our laws should make no distinction on account of creed. They intended to found and frame a government for man and for man alone. They wished to preserve the individuality of all to prevent the few from governing the many and the many from persecuting and destroying the few.

I believe in an America where the separation of church and state is absolute - where no Catholic prelate would tell the President (should he be Catholic) how to act, and no Protestant minister would tell his parishioners for whom to vote - where no church or church school is granted any public funds or political preference - and where no man is denied public office merely because his religion differs from the President who might appoint him or the people who might elect him.

I believe in an America that is officially neither Catholic, Protestant nor Jewish - where no public official either requests or accepts instructions on public policy from the Pope, the National Council of Churches or any other ecclesiastical source - where no religious body seeks to impose its will directly or indirectly upon the general populace or the public acts of its officials - and where religious liberty is so indivisible that an act against one church is treated as an act against all.

[Remarks to the Greater Houston Ministerial Association, September 12 1960]

For while this year it may be a Catholic against whom the finger of suspicion is pointed, in other years it has been, and may someday be again, a Jew--or a Quaker--or a Unitarian--or a Baptist. It was Virginia's harassment of Baptist preachers, for example, that helped lead to Jefferson's statute of religious freedom. Today I may be the victim- -but tomorrow it may be you--until the whole fabric of our harmonious society is ripped at a time of great national peril.

Finally, I believe in an America where religious intolerance will someday end--where all men and all churches are treated as equal--where every man has the same right to attend or not attend the church of his choice--where there is no Catholic vote, no anti-Catholic vote, no bloc voting of any kind--and where Catholics, Protestants and Jews, at both the lay and pastoral level, will refrain from those attitudes of disdain and division which have so often marred their works in the past, and promote instead the American ideal of brotherhood.

That is the kind of America in which I believe. And it represents the kind of Presidency in which I believe--a great office that must neither be humbled by making it the instrument of any one religious group nor tarnished by arbitrarily withholding its occupancy from the members of any one religious group. I believe in a President whose religious views are his own private affair, neither imposed by him upon the nation or imposed by the nation upon him as a condition to holding that office.
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This is the kind of America I believe in--and this is the kind I fought for in the South Pacific, and the kind my brother died for in Europe. No one suggested then that we may have a "divided loyalty," that we did "not believe in liberty," or that we belonged to a disloyal group that threatened the "freedoms for which our forefathers died.

When the government puts its imprimatur on a particular religion it conveys a message of exclusion to all those who do not adhere to the favored beliefs. A government cannot be premised on the belief that all persons are created equal when it asserts that God prefers some.

Almost any sect, cult, or religion will legislate its creed into law if it acquires the political power to do so.