From http://coldfury.com/reason/?p=755

The danger of silent accumulations & encroachments by Ecclesiastical Bodies have not sufficiently engaged attention in the U. S. They have the noble merit of first unshackling the conscience from persecuting laws, and of establishing among religious Sects a legal equality. If some of the States have not embraced this just and this truly Xn principle in its proper latitude, all of them present examples by which the most enlightened States of the old world may be instructed; and there is one State at least, Virginia, where religious liberty is placed on its true foundation and is defined in its full latitude. The general principle is contained in her declaration of rights, prefixed to her Constitution: but it is unfolded and defined, in its precise extent, in the act of the Legislature, usually named the Religious Bill, which passed into a law in the year 1786. Here the separation between the authority of human laws, and the natural rights of Man excepted from the grant on which all political authority is founded, is traced as distinctly as words can admit, and the limits to this authority established with as much solemnity as the forms of legislation can express. The law has the further advantage of having been the result of a formal appeal to the sense of the Community and a deliberate sanction of a vast majority, comprizing every sect of Christians in the State. This act is a true standard of Religious liberty: its principle the great barrier agst usurpations on the rights of conscience. As long as it is respected & no longer, these will be safe. Every provision for them short of this principle, will be found to leave crevices at least thro’ which bigotry may introduce persecution; a monster, that feeding & thriving on its own venom, gradually swells to a size and strength overwhelming all laws divine & human.