The article is ridiculous. I'd even go so far as to say "stupid." Not as in a 3rd grader dismisses something as "stupid" because they don't want to deal with something inconvenient but "stupid" as in utterly lacking intellectual rigor.
The article repeatedly parodies Scripture, taking some chunks way out of context and just plain making things up that aren't true.
For instance, did you know that the Apostle Paul only thought of marriage as an institution for people that couldn't control their sexual urges? The problem with that claim and most of the rest of the claims article author Lisa Miller makes are that they are just flat out wrong.
Albert Mohler has a good response to the article here, but the best response comes from Molly of getreligion.org in Sola scriptura minus the scriptura.
Quoting from the conclusion of later:
And yet preach with unhinged emotion is precisely what Miller does. She never once speaks with an actual opponent of same-sex marriage. She never once speaks with someone who knows anything about the Biblical model of marriage as understood for thousands of years. This piece is disgusting, unfair and unworthy of a high school graduate. It is the opposite of thought-provoking. It’s a post-frontal lobotomy exegesis of Scripture. This is journalism? This is how people are supposed to cover the news, today?
She actually uses Miss Manners to defend liturgical changes in marital rites. I mean, really. This is a serious topic. We have had the majority populace of three dozen states now vote to define marriage as a heterosexual union. I know the news industry is suffering but perhaps one reporter could go actually research what these people think.
Instead we learn nothing about the principled opposition to same-sex marriage and instead get blasphemy and some of the most cliched reading of Scripture to appear in print.
Well put, Molly.