James K. Polk Inaugural Address March 4, 1845

....In assuming responsibilites so vast I fervently invoke the aid of that Almighty Ruler of the Universe in whose hands are the destinies of nations and of men to guard this Heaven-favored land against the mischiefs which without His guidance might arise from an unwise public policy.  With a firm reliance upon the wisdom of Omnipotent to sustain and direct me in the path of duty which I am appointed to pursue, I stand in the presence of this assembled multitude of my countrymen to take upon myself the solemn obligation "to the best of my ability to preserve, protect, and defend the Constitution of the United States."

...Confidently relying upon the aid and assistance of the coordinate departments of the Government in conducting our public affairs, I enter upon the discharge of the high duties which have been assigned me by the people, again humbly supplicating that Divine Being who has watched over and protected our beloved country from its infancy to the present hour to continue His gracious benedictions upon us, that we may continue to be a prosperous and happy people.