This is the text of President John Adams' March 23, 1798 national Fasting and Prayer proclamation; as printed in the The Phenix/Windham Herald, April 12, 1798.
By the President of the United States of America
A PROCLAMATIONAS the safety and prosperity of nations ultimately and essentially depend on the protection and blessing of Almighty God; and the national acknowledgment of this truth is not only an indispensable duty which the people owe to Him,
but a duty whose natural influence is favorable to the promotion of that morality and piety, without which social happiness cannot exist, nor the blessings of a free government be enjoyed; and as this duty, at all times incumbent, is so especially in seasons of difficulty and of danger, when existing or threatening calamities, the just judgments of God against prevalent iniquity are a loud call to repentance and reformation...
And finally I recommend, that on the said day; the duties of humiliation and prayer be accompanied by fervent Thanksgiving to the bestower of every good gift, not only for having hitherto protected and preserved the people of these United States in the independent enjoyment of their religious and civil freedom, but also for having prospered them in a wonderful progress of population, and for conferring on them many and great favours conducive to the happiness and prosperity of a nation.
Given under my hand and seal of the United States of America, at Philadelphia, this twenty-third day of March, in the year of our Lord one thousand seven hundred and ninety-eight, and of the Independence of the said States the twenty-second.