What should replace Parliament's prayer?

While the current Speaker is trying to preserve it, given the changing religious landscape in New Zealand, its only a matter of time before Parliament's opening prayer is consigned to the dustbin of history. So what, if anything, should replace it?

The current prayer does two things: its a statement of religion which excludes all non-Christian (and arguably, non-Anglican) New Zealanders. But it also attempts to remind MPs why they're there. We can keep the last bit. An opening statement reminding MPs of the purpose of Parliament - to represent the people of New Zealand and hold the government to account - would work.