Comment Re:"principles our nation was founded on" (Score 1) 1168
You won't find those exact words; however, you will find this:
but no religious Test shall ever be required as a Qualification to any Office or public Trust under the United States.
If there was a state religion, or if religion were not required to be separate from the state, there would, indeed, be religious tests applicable.
Of course, the Constitution also still contains provisions on how to count slaves for purposes of allocating Congress.