As the magistrate has no power to impose by his laws the use of any rites and ceremonies in any church, so neither has he any power to forbid the use of such rites and ceremonies as are already received, approved, and practised by any church; because if he did so, he would destroy the church itself; the end of whose institution is only to worship God with freedom, after its own manner.
Locke and liberty: selections from the works of John Locke (ed. 1960)