Sometimes behave according to that religion ought to be done. It does not have a profound knowledge of the religion or are not interested in religion other than his religion.
Maybe they acted according to the religious of this action. But I don't have any profound religious knowledge or interest in other religions, not their religion.
Perhaps it was his practice, in accordance with the act, but not the religious should have knowledge about religion, deeply interested in religion or not. The other is not their religion.