When the War of 1812 began with Britain, James Madison proclaimed a National Day of Public Humiliation and Prayer, July 9, 1812:
"I ... recommend the third Thursday of August ... for ... rendering the Sovereign of the Universe ... public homage ... that He would inspire all ...with a reverence for the unerring precept of our holy religion, to do to others as they would require that others should do to them."
On June 21, 1776, John Adams wrote: "Statesmen, my dear Sir, may plan and speculate for liberty, but it is Religion and Morality alone, which can establish the principles upon which freedom can securely stand."
In July of 1800, the congregation planned another camp meeting at the Gaspar River. Surpassing their expectations, 8,000 people arrived, some from over 100 miles away: "The power of God seemed to shake the whole assembly. Towards the close of the sermon, the cries of the distressed arose almost as loud as his voice.
After the congregation was dismissed the solemnity increased, till the greater part of the multitude seemed engaged in the most solemn manner ..
Describing the Muslim slave trade as "a monster brooding over Africa,"Livingstone once walked 120 miles near Lake Nyasa without seeing a single human being, as Arab slave traders had so depopulated the area.