Created in the image of God, humans bear ultimate responsibility to their Creator. No human authority can stand in the position of God or otherwise establish the terms of human responsibility to God. For this reason, the constitution, or basic law, of a political community should recognize and protect the religious freedom of citizens.
The religion of some people may be only a matter of worship or private conviction. The religion of others may entail obligations to serve their neighbors, educate their children, and carry out their work and civic duties as part of an entire way of life in obedience to God. Whatever the case, government does not have the authority to define true religion and thus must protect the religious freedom of all citizens.
Government therefore does not have the authority to establish an official religion. If all citizens should be free to practice their religions, then government’s establishment of one religion or one kind of religion would contradict the principle of equal treatment of all citizens.
Religious freedom entails not only freedom of conscience and worship; it also includes the right of citizens to conduct themselves in public life without legal or financial discrimination due to their religion. Public justice thus requires equal treatment of citizens in both the public and private practice of religion.
Equal treatment of citizens with regard to religion entails two additional prohibitions:
First, there must be no privileging of secularism or of anti-religion in the public square. That would be to discriminate unjustly against public religions.
Second, there must be no discrimination against those who make no religious profession or who are antagonistic toward religion. Such discrimination would mean the unjust privileging of the convictions of some citizens over others.
Governments bear responsibility to uphold the peace and welfare of the political community. Therefore, they have authority both to prohibit certain actions that degrade or destroy human life and to restrict conduct that disrupts public concord. These legitimate acts of government must apply universally to all citizens. On occasion, therefore, governments may be obligated to restrain or prohibit certain practices even though some citizens consider them proper to the exercise of their religions.