I'm not going to comment much on this intriguing piece by theologian John Milbank on the ABC Religion and Ethics Portal. Make of it what you will (try to be fair to it and at least see if you can make sense of the argument, as a lot of thought has obviously gone into it, so it's perhaps worthwhile to try to figure it out). It is obviously making all sorts of assumptions that I would not accept. But that's all I plan to say for the moment.
Quite independently - I have only just seen Milbank's piece and am not writing in reply to it - I have a piece on the subject of marriage on the same site appearing very soon, perhaps tomorrow. I like to think that my piece will be a little easier to follow, but who knows what people will think?