Answer:
to understand how America's current balance among national law, local community practice, and individual freedom of belief evolved, it's helpful to understand some of the common experiences and patterns around religion in colonial culture in the period between 1600 and 1776.
In the early years of what later became the United States, Christian religious groups played an influential role in each of the British colonies, and most attempted to enforce strict religious observance through both colony governments and local town rules.
Most attempted to enforce strict religious observance. Laws mandated that everyone attend a house of worship and pay taxes that funded the salaries of ministers. Eight of the thirteen British colonies had official, or “established,” churches, and in those colonies dissenters who sought to practice or proselytize a different version of Christianity or a non-Christian faith were sometimes persecuted.
Although most colonists considered themselves Christians, this did not mean that they lived in a culture of religious unity. Instead, differing Christian groups often believed that their own practices and faiths provided unique values that needed protection against those who disagreed, driving a need for rule and regulation.
In Europe, Catholic and Protestant nations often persecuted or forbade each other's religions, and British colonists frequently maintained restrictions against Catholics. In Great Britain, the Protestant Anglican church had split into bitter divisions among traditional Anglicans and the reforming Puritans, contributing to an English civil war in the 1600s. In the British colonies, differences among Puritan and Anglican remained.