The problems that beset both the Rump and the Nominated Parliament resulted from the diversity of groups that supported the revolution, ranging from pragmatic men of affairs, lawyers, officeholders, and local magistrates whose principal desire was to restore and maintain order to zealous visionaries who wished to establish heaven on earth. The republicans, like Sir Henry Vane the Younger, hoped to create a government based upon the model of ancient Rome and modern Venice. They were proud of the achievements of the Commonwealth and reviled Cromwell for dissolving the Rump. But most political reformers based their programs on dreams of the future rather than the past. They were millenarians, expecting the imminent Second Coming of Christ. Some were social reformers, such as Gerrard Winstanley, whose followers, agrarian communists known as Diggers, believed that the common lands should be returned to the common people. Others were mystics, such as the Ranters, led by Laurence Claxton, who believed that they were infused with a holy spirit that removed sin from even their most reprehensible acts. The most enduring of these groups were the Quakers (Society of Friends), whose social radicalism was seen in their refusal to take oaths or doff their hats and whose religious radicalism was contained in their emphasis upon inner light. Ultimately, all these groups were persecuted by successive revolutionary governments, which were continually being forced to establish conservative limits to individual and collective behaviour.
The failure of the Nominated Parliament led to the creation of the first British constitution, the Instrument of Government (1653). Drafted by Maj. Gen. John Lambert, the Instrument created a lord protector, a Council of State, and a reformed Parliament that was to be elected at least once every three years. Cromwell was named protector, and he chose a civilian-dominated Council to help him govern. The Protectorate tackled many of the central issues of reform head-on. Commissions were appointed to study law reform and the question of tithes. Social legislation against swearing, drunkenness, and stage plays was introduced. Steps were taken to provide for the training of a godly ministry, and even a new university at Durham was begun.
But the protector was no better able to manage his Parliaments than had been the king. The Parliament of 1654 immediately questioned the entire basis of the newly established government, with the republicans vigorously disputing the office of lord protector. The Parliament of 1656, despite the exclusion of many known opponents, was no more pliable. Both were a focus for the manifold discontents of supporters and opponents of the regime.
Nothing was more central to the Cromwellian experiment than the cause of religious liberty. Cromwell believed that no one church had a monopoly on truth and that no one form of government or worship was necessary or desirable. Moreover, he believed in a loosely federated national church, with each parish free to worship as it wished within very broad limits and staffed by a clergy licensed by the state on the basis of their knowledge of the Bible and the uprightness of their lives, without reference to their religious beliefs. On the other hand, Cromwell felt that there should be freedom for “all species of protestant” to gather if they wished into religious assemblies outside the national church. He did not believe, however, that religious liberty was a natural right, but one conferred by the Christian magistrate, who could place prudential limits on the exercise of that liberty. Thus, those who claimed that their religion permitted or even promoted licentiousness and sexual freedom, who denied the Trinity, or who claimed the right to disrupt the worship of others were subject to proscription or penalty. Furthermore, for the only time between the Reformation and the mid-19th century, there was no religious test for the holding of public office. Although Cromwell made his detestation of Catholicism very plain, Catholics benefited from the repeal of the laws requiring attendance at parish churches, and they were less persecuted for the private exercise of their own faith than at any other time in the century. Cromwell’s policy of religious tolerance was far from total, but it was exceptional in the early modern world.