“I do therefore recommend the third Thursday in August next, as a convenient day to be set apart for the devout purposes of rendering to the Sovereign of the Universe and the Benefactor of mankind, the public homage due to his holy attributes; of acknowledging the transgressions which might justly provoke the manifestations of His divine displeasures; of seeking His merciful forgiveness, His assistance in the great duties of repentance and amendment; and especially of offering fervent supplications, that in the present season of calamity and war, He would take the American People under his peculiar care and protection; that he would guide their public councils, animate their patriotism, and bestow His blessing on their arms; that He would inspire all nations with a love of justice and of concord, and with a reverence for the unerring precept of our holy religion, to do to others as they would require others to do to them; and finally, that, turning the hearts of our enemies from the violence and injustice which sway their councils against us, He would hasten a restoration of the blessings of Peace.”

Proclamation – Humiliation and Prayer https://wallbuilders.com/proclamation-humiliation-prayer-1812-2/ (20 August 1812)