American exceptionalism began with the Plymouth Compact, as its “birth certificate" written on November 11, 1620 (November 24 on our Gregorian Calendar). Thus, the origin of our civil body politic can be traced, as Judeo-Christian, specifically Protestant, even more specific English Reformed. New England’s Reformed Protestantism with a Separatist (and Baptist) influence seemed to have formed a political and moral basis and pattern for our American self-government and American exceptionalism with the consent of the governed and biblical morality with such moral values, as work-ethic, personal liberty with freedom of conscience/religion, abolition, capitalism, life, family, marriage, and private property.
The Plymouth Compact in its origin can be aptly described, as Judeo-Christian Reformed Anglo-Protestantism. As a “birth certificate,” The Mayflower Compact specifies (in a modernized form) – “[We], having undertaken for the glory of God and advancement of the Christian faith and the honor of our king and country a voyage to plant the first colony in the northern parts of Virginia, do by these present solemnly and mutually in the presence of God and one of another covenant and combine ourselves together into a civil political body, for our better ordering and preservation and furtherance of the ends above and by virtue of it to enact, constitute, and frame, such just and equal laws, ordinances, acts, constitutions and offices, from time to time, as shall be thought most befitting and convenient for the general good of the colony, to which we promise all due submission and obedience.”
In other words, for God and evangelism and patriotism they planted a colony north of the original Virginia colony and formed a government (the first self-governing "civil body politic" on the American continent), to orderly secure their community. They would propose and ratify laws and offices of leadership in time to come for the benefit of the people who then would obey them.
This Mayflower Compact created laws for Mayflower Pilgrims and non-Pilgrims alike for the good of their new colony. It was a short document which established that:
The Colonists would remain loyal subjects to King James, despite their need for self-governance.
The Colonists would create and enact “laws, ordinances, acts, constitutions and offices…” for the good of the colony and abide by those laws.
The Colonists would create one society and work together to further it.
The Colonists would live in accordance with the Christian faith.