Philosophy professor William Lane Craig maintains a web site, Reasonable Faith, where he has apologetics articles and answers people’s questions. He answered someone’s question about the recent gay marriage supreme court ruling, and I’ve reproduced much of it here. See Craig’s site for the full response.
I’m going to use your question, R.C., [as] an excuse for addressing the Supreme Court’s tragic and misguided decision to re-define marriage in Obergefell v. Hodges.
We need to understand clearly that that is exactly what the Supreme Court has done. By ruling that same-sex unions can count as marriage the Court has implicitly redefined what marriage is. Marriage is no longer taken to be essentially heterosexual, as traditionally conceived, but has been implicitly redefined so that men can be married to men and women to women.
The Court’s majority opinion, written by Anthony Kennedy, shows a clear consciousness of what the Court is doing. Referring to the traditional view, Kennedy writes, “Marriage, in their view, is by its nature a gender-differentiated union of man and woman. This view long has been held—and continues to be held—in good faith by reasonable and sincere people here and throughout the world” (my emphasis). It is this view which Court’s majority declares is now obsolete.