"The Senators and Representatives before mentioned, and the members of the several state legislatures, and all executige and judicial officers, both of the united states and of the several states, shall be bound by oath of 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."
From article VI (3rd paragraph)
"The Senators and Representatives before mentioned, and the members of the several state legislatures, and all executige and judicial officers, both of the united states and of the several states, shall be bound by oath of 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."