At the same time the right to free speech in this country is protected under New Zealand's Bill of Rights Act 1990.
Effectively, then, we have two contradictory, clashing laws, so the sensible thing would be to remove or modify one. But which?
Free speech is not completely free, as we know, and there are limits to what we can say or write in public.
People are protected by anti-libel and anti-slander laws and they are frequently tested in court, but freedom of speech is enshrined in our culture.
While God might have the same anti-libel protection under the Crimes Act, it begs the question -- why?
According to scripture, God is no slug when it comes to dishing out punishment on his own behalf, so why would he need puny humans to protect his good name? Dump the law, as we have done with all archaic and outmoded laws and leave heresy prosecutions to the less enlightened.