Thomas Jefferson on “Separation between Church and State”

“Because religious belief, or non-belief, is such an important part of every person’s life, freedom of religion affects every individual. Religious institutions that use government power in support of themselves and force their views on persons of other faiths, or of no faith, undermine all our civil rights. Moreover, state support of an established religion tends to make the clergy unresponsive to their own people, and leads to corruption within religion itself. Erecting the “wall of separation between church and state,” therefore, is absolutely essential in a free society.

We have solved, by fair experiment, the great and interesting question whether freedom of religion is compatible with order in government and obedience to the laws. And we have experienced the quiet as well as the comfort which results from leaving every one to profess freely and openly those principles of religion which are the inductions of his own reason and the serious convictions of his own inquiries.”

— Thomas Jefferson, to the Virginia Baptists (1808) ME 16:320. This is his second kown use of the term “wall of separation,” here quoting his own use in the Danbury Baptist letter. This wording of the original was several times upheld by the Supreme Court as an accurate description of the Establishment Clause: Reynolds (98 US at 164, 1879); Everson (330 US at 59, 1947); McCollum (333 US at 232, 1948)