Social Doctrine of the Church - Religious Freedom - 3

The right of religious freedom is not unlimited:

Religious freedom is not a moral licence to adhere to error, nor as an implicit right to error [sic] (Compendium, 421).

(As an aside, the editing of the Compendium is at times really galling. What exactly does that second phrase - or was it intended to be a clause??? - mean? Sheesh. It has every appearance of being a rush job, and that's a shame. But I digress).

Perhaps a bit from the Catechism will help in fleshing this out:

The right to religious liberty is neither a moral license to adhere to error, nor a supposed right to error, but rather a natural right of the human person to civil liberty, i.e., immunity, within just limits, from external constraint in religious matters by political authorities. This natural right ought to be acknowledged in the juridical order of society in such a way that it constitutes a civil right.

The right to religious liberty can of itself be neither unlimited nor limited only by a "public order" conceived in a positivist or naturalist manner. The "due limits" which are inherent in it must be determined for each social situation by political prudence, according to the requirements of the common good, and ratified by the civil authority in accordance with "legal principles which are in conformity with the objective moral order" (CCC 2108-2109).

We have a duty to seek out truth, so that we must not be content to cling to error. But civil authorities have no right - "within just limits" - to infringe on our religious freedom. But there are limits: for example, a religion of human sacrifice like the Aztecs' could not possibly expect any privilege.