“In the same way, there was a letter in the Times Literary Supplement just a few weeks ago saying that when we’re talking about assisted suicide, we shouldn’t actually use words like “suicide,” “killing,” and those sort of words because those imply that you shouldn’t do it. Whereas now our civilization is saying that maybe there are reasons for that. I find that sort of stuff chilling, the attempt to change an ideology within a culture by changing the language.
Now, the word “marriage,” for thousands of years and cross-culturally has meant man and woman. Sometimes it’s been one man and more than one woman. Occasionally it’s been one woman and more than one man. There is polyandry as well as polygamy in some societies in some parts of history, but it’s always been male plus female. Simply to say that you can have a woman-plus-woman marriage or a man-plus-man marriage is radically to change that because of the givenness of maleness and femaleness. I would say that without any particular Christian presuppositions at all, just cross-culturally, that’s so.“
– First Things; emphasis mine