Spiritual wut?

La Sainte-Cène du Patriarche, Jean Huber, 1772-73. Image via German Wikipedia. I think Diderot is the wigless man in black seated at right; Voltaire, in the red cap, the Patriarche of the title and the host of the gathering at his exile home in Ferney, is waving for attention, about to make a quip. 

This nation was not founded on political principles - this nation was founded on spiritual principles. https://t.co/CoKDlQOGYn #PFF15

— Marco Rubio (@marcorubio) November 21, 2015

Just the same old shit, obviously, that according to the Declaration of Independence all men are

endowed by their Creator with certain unalienable rights

which means that they're spiritual rights, not political rights, since the Lord laid them on us without even asking which ones we wanted, though it seems to me like a questionable reading in the first place; I mean honestly what is spiritual about "liberty" or "the pursuit of happiness"? If you believe in a kind of personal Creator, who endowed you with a nose, does that mean your nose is a spiritual rather than physiological property? If it's thanks to the Deity that we have a propensity to argue about politics, does that mean political discussion itself is spiritual rather than political?

I may actually have something new to say on this subject (I'm going to sketch an argument that Jefferson's formulation of natural rights owes less than commonly understood to the good Protestant Locke and much more to the atheist Diderot), but I want to work toward it backwards, starting on the more familiar territory of what Jefferson, as opposed to the Declaration, said.