Vatican II's Dignitatis Humanae teaches that no one may be coerced in matters of religious belief. This represents a development, not a contradiction, of earlier teaching. The earlier position concerned the rights of truth; the later position concerns the rights of persons.
If the Church taught one thing for centuries and then taught the opposite at Vatican II, either the earlier teaching was wrong or Vatican II was wrong. The Church cannot have it both ways.
The Church only endorsed religious freedom when it lost the power to enforce conformity. If it regained political power, it would revert to coercion.
The human person has a right to religious freedom. This freedom means that all men are to be immune from coercion on the part of individuals or of social groups and of any human power.
The apparent contradiction is real and deserves honest engagement. Before Vatican II, the Catholic Church's official position, reflected in the Syllabus of Errors (1864) and other documents, held that error has no rights and that the ideal state would formally recognise the Catholic religion. After Vatican II, the Church teaches that every person has a right to religious freedom, including the right to follow an erroneous conscience without civil coercion.
The resolution lies in distinguishing between the object of the right. The earlier teaching addressed the objective rights of truth: error, considered in the abstract, has no right to exist or to be propagated. The later teaching addresses the subjective rights of persons: even a person in error retains the dignity that forbids coercion in matters of conscience.
Both propositions can be simultaneously true. Truth has objective claims. Persons have inviolable dignity. The earlier formulation emphasised the first; the later emphasised the second. The development was prompted by the experience of totalitarianism (both Nazi and Communist) in the twentieth century, which showed that state coercion in matters of conscience is always dangerous, even when exercised in the name of truth.
Newman's theory of development provides the framework: the Church's understanding of revelation deepens over time. The seeds of religious freedom are present in the New Testament (faith must be free), in the early Church (Tertullian: 'It is a fundamental human right to worship what you choose'), and in Aquinas (forced faith is not faith). Vatican II made explicit what was implicit.
This is one of the most intellectually honest challenges to Catholic consistency. The development is real. The question is whether it is a legitimate deepening or a reversal.
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