Religion and the Constitution: The Triumph of Practical Politics
https://www.religion-online.org/article/religion-and-the-constitution-the-triumph-of-practical-politics/

ONLINE ARTICLE In this reprint of an article in The Christian Century, renown theologian Martin E. Marty argues that the Framers did not refer to Christian theology in any great degree as they crafted the Constitution. Instead the freedom to believe and proselytize that the Constitution protected, led to what he calls an "evangelicalization" of America in the following generation.

US Constitution: Article VI
http://www.law.cornell.edu/constitution/articlevi

PRIMARY SOURCE Article VI of the US Constitution is the only place that religion is mentioned in the entire body of the Constitution. Here is the brief but complete text of that article.

Judiciary Act
https://www.archives.gov/milestone-documents/federal-judiciary-act

WEB RESOURCE Article III of the US Constitution provided for the establishment of the Supreme Court. The Judiciary Act of 1789 completed the process of establishing the judicial branch of the national government.