But the Independent movement could not confine itself to ecclesiastical matters, it was forced by logical necessity to carry its fundamental doctrines into the political sphere. As the Church, so it considered the state and every political association as the result of a compact between its original sovereign members.[68] This compact was made indeed in pursuance of divine commandment, but it remained always the ultimate legal basis of the community. It was concluded by virtue of the individual's original right and had not only to insure security and advance the general welfare, but above all to recognize and protect the innate and inalienable rights of conscience. And it is the entire people that specifically man for man concluded this compact, for by it alone could every one be bound to respect the self-created authority and the self-created law.

The first indications of these religious-political ideas can be traced far back, for they were not created by the Reformation. But the practice which developed on the basis of these ideas was something unique. For the first time in history social compacts, by which states are founded, were not merely demanded, they were actually concluded. What had until then slumbered in the dust-covered manuscripts of the scholar became a powerful, life-determining movement. The men of that time believed that the state rested upon a contract, and they put their belief into practice. More recent theory of public law with only an imperfect knowledge of these events frequently employed them as examples of the possibility of founding a state by contract, without suspecting that these contracts were only the realization of an abstract theory.

On October 28, 1647, there was laid before the assembled Council of Cromwell's army a draft, worked out by the Levellers, of a new constitution for England,[69] which later, greatly enlarged and modified,[70] was delivered to Parliament with the request that it be laid before the entire English people for signature.[71] In this remarkable document the power of Parliament was set forth as limited in a manner similar to that later adopted by the Americans, and particulars were enumerated which in future should not lie within the legislative power of the people's representatives. The first thing named was matters of religion, which were to be committed exclusively to the command of conscience.[72] They were reckoned among the inherent rights, the "native rights", which the people were firmly resolved to maintain with their utmost strength against all attacks.[73]

Here for the first and last time in England was an inherent right of religious liberty asserted in a proposed law. This right is recognized to-day in England in legal practice, but not in any expressly formulated principle.[74]

The religious conditions in England's North American colonies developed differently.

The compact is celebrated which the persecuted and exiled Pilgrim Fathers concluded on board the Mayflower, November 11, 1620, before the founding of New Plymouth. Forty-one men on that occasion signed an act in which, for the glory of God, the advancement of the Christian faith, and the honor of their king and country, they declare their purpose to found a colony. They thereupon mutually promised one another to unite themselves into a civil body politic, and, for the maintenance of good order and accomplishment of their proposed object, to make laws, to appoint officers, and to subject themselves to these.[75]

Therewith began the series of "Plantation Covenants" which the English settlers, according to their ecclesiastical and political ideas, believed it necessary to make on founding a new colony. Here they are only to be considered in their connection with religious liberty.

In 1629 Salem, the second colony in Massachusetts, was founded by Puritans. Unmindful of the persecutions they themselves had suffered in their native land, they turned impatiently against such as did not agree with them in their religious ideas. Roger Williams, a young Independent, landed in Massachusetts in 1631 and was at once chosen by the community in Salem to be its minister. But he preached complete separation of Church and State, and demanded absolute religious liberty, not only for all Christians but also for Jews, Turks, and heathen. They should have in the state equal civil and political rights with believers. A man's conscience belongs exclusively to him, and not to the state.[76] Exiled and in danger, Williams forsook Salem and with a faithful few founded, 1636, the city of Providence in the country of the Narragansett Indians, where all who were persecuted on account of their religion should find a refuge. In the original compact the seceders promised obedience to laws determined by a majority of themselves, but "only in civil things"—religion was to be in no way a subject of legislation.[77] Here for the first time was recognized the most unrestricted liberty of religious conviction, and that by a man who was himself glowing with religious feeling.

Nineteen settlers from Providence in 1638 founded Aquedneck, the second colony in the present state of Rhode Island, after having concluded a most remarkable compact: "We whose names are underwritten do here solemnly, in the presence of Jehovah, incorporate ourselves into a Bodie Politik, and as he shall help, will submit our persons, lives and estates unto our Lord Jesus Christ, the King of Kings and Lord of Lords, and to all those perfect and absolute laws of his given us in his holy word of truth, to be guided and judged hereby.—Exod. xxiv, 3, 4; 2 Chron. xi, 3; 2 Kings xi, 17."[78]

But such as did not go so far as Roger Williams in the recognition of liberty of conscience were yet dominated by the idea of the necessity of a social compact in founding a new colony. In the Fundamental Orders of Connecticut, a colony founded by Puritans who also had emigrated from Massachusetts, the settlers in 1638 declared that they united themselves in a body politic in pursuance of the word of God in order to guard the liberty of the Gospel and the church discipline to which they were accustomed, and in order also in civil affairs to be ruled according to the laws.[79] In the opposition in which they stood to the religious conditions in England, the Puritans, although themselves little inclined to toleration, proceeded invariably upon the idea that their state had first of all to realize religious liberty, which was for them the free exercise of their own religious convictions.