The Bill of Rights (1781)

First Amendment: "Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances."

Transcript of The Bill of Rights at OurDocuments.gov. Transcript includes the original 12 Amendments submitted, the first two of which were not ratified.

The Constitution of the United States of America (1787)

Article VI, Section 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."

Transcript of The Constitution of The United States of America at OurDocuments.gov