U.S. Constitution, Article VI — Debts, Supremacy and Oaths, Clause 3
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.
Notes
Requires Senators and Representatives, members of the state legislatures, and all executive and judicial officers of the United States and of the states to be bound by oath or affirmation to support the Constitution. Bars any religious test as a qualification for any office or public trust under the United States.
Use as reference
Lexinter.net | U.S. Const. art. VI, cl. 3 | https://laws.lexinter.net/constitution/us/article-6/clause-3