United States is not a Christian nation any more than it is a Jewish or a Mohammedan nation."
John Adams -- Treaty of Tripoli (1797) carried unanimously by the Senate
"During almost fifteen centuries has the legal establishment of Christianity been on trial. What have been its fruits? More or less in all places, pride and indolence in the Clergy, ignorance and servility in the laity; in both, superstition, bigotry and persecution." ---James Madison (the father of the Constiution)
All national institutions of churches, whether Jewish, Christian or Turkish, appear to me no other than human inventions, set up to terrify and enslave mankind, and monopolize power and profit.
-- Thomas Paine
“The civil government ... functions with complete success ... by the total separation of the Church from the State.”--- James Madison
If I could conceive that the general government might ever be so administered as to render the liberty of conscience insecure, I beg you will be persuaded, that no one would be more zealous than myself to establish effectual barriers against the horrors of spiritual tyranny, and every species of religious persecution.
-- George Washington
"t is contrary to the principles of reason and justice that any should be compelled to contribute to the maintenance of a church with which their consciences will not permit them to join, and from which they can derive no benefit; for remedy whereof, and that equal liberty as well religious as civil, may be universally extended to all the good people of this commonwealth." George Mason Virginia Declaration of Rights, 1776
"As I understand the Christian religion, it was, and is, a revelation. But how has it happened that millions of fables, tales, legends, have been blended with both Jewish and Christian revelation that have made them the most bloody religion that ever existed?" --- John Adams
"I have generally been dominated a Deist, the reality of which I never disputed, being conscious I am no Christian, except mere infant baptism makes me one; and as to being a Deist, I know not strictly speaking, whether I am one or not." ---Ethan Allen
I do not believe in the creed professed by the Jewish church, by the Roman church, by the Greek church, by the Turkish church, by the Protestant church, nor by any church that I know of...Each of those churches accuse the other of unbelief; and for my own part, I disbelieve them all."--- Thomas Paine
"Let it simply be asked, where is the security for property, for reputation, for life, if the sense of religious obligation desert the oaths which are the instruments of investigation in courts of justice? And let us with caution indulge the supposition that morality can be maintained without religion." ---George Washington
"What influence, in fact, have ecclesiastical establishments had on society? In some instances they have been seen to erect a spiritual tyranny on the ruins of the civil authority; on many instances they have been seen upholding the thrones of political tyranny; in no instance have they been the guardians of the liberties of the people. Rulers who wish to subvert the public liberty may have found an established clergy convenient auxiliaries. A just government, instituted to secure and perpetuate it, needs them not." –James Madison
"The senators and representatives before mentioned, and the members of the several state legislatures, and all executive and judicial officers, both of the United States and of the several states, shall be bound by oath or affirmation, to support this Constitution; but no religious test shall ever be required as a qualification to any office or public trust under the United States." The United States Constitution Article VI, Clause 3.