So, over in the West Island, things are reaching boiling point re whether there will or will not be a postal referendum, referendum, parliamentary bill, agreed to by senate or not, on, you know, that thing we in NZ actually managed to decide in a comparatively peaceful and orderly manner, same-sex marriage. But this is not time to boast. [That can wait till next Saturday night :).] Frankly, I am a bit confused. I think I understand one point: proponents of same-sex marriage are against a referendum on the matter, but not because a referendum (postal or otherwise) will go against change to the status quo, but because the accompanying debate will be full of homophobia.
Anyway, any Ozzie light shed on the matter of the politics of same-sex marriage, is welcome here, but what I do see in the public domain are two presentations on marriage, the existence of both views highlighting that Australian Christians are not agreed on what constitutes marriage.
One is by Jason Goroncy, a Baptist/Presbyterian theologian: A Christian theology of marriage.
The other is by Michael Jensen: I oppose same-sex marriage (and no, I am not a bigot).
I am citing these articles here, partly for possible future reference, partly because they represent for me some fine, careful Christian thinking about marriage. Yet, in my view, neither is completely satisfactory! Briefly, Goroncy omits discussion of Genesis 1-2; Jensen does not recognise the possibility that there is a distinction between 'contractual' marriage and 'conjugal' marriage, which in turn means it is possible for parliaments to change the terms of the former (as it often does re any law concerning contracts) while leaving untouched the permanent terms of the latter. (See, e.g. this book).
Finally, a note from the Church of England, from the Church of England Evangelical Council in particular, via Thinking Anglicans, here. Clearly some positioning is going on with respect to how the future might work out, following the recent General Synod of the CofE, which somewhat meekly bent itself in a progressive direction without, seemingly, much resistance from conservatives.