Some significant moments in the gay marriage position of Fox News host Bill O’Reilly:

Marry a duck

May 26, 2009: O’Reilly discusses a decision by the California Supreme Court that gay marriage would remain illegal: “If the California Supreme Court had allowed the gays to marry, then anybody could have gotten married. You could have married a duck. Because it would have been equal protection. And you can always explain, “Look, I want to marry three women” or “I want to marry two guys, because I’m in love.” This, that, and the other thing.

“Homosexuals” prevail on the merits

March 26, 2013: O’Reilly discusses arguments before the U.S. Supreme Court on gay marriage. “The compelling argument is on the side of homosexuals. That’s where the compelling argument is. We’re Americans. We just want to be treated like everybody else. That is a compelling argument. And to deny that, you’ve got to have a very strong argument on the other side . . . And the other side hasn’t been able to do anything but thump the bible.”

In the same appearance, he said he doesn’t “feel that strongly about it one way or the other.”

Secularists “hammer” Judeo-Christian roots

Last night: O’Reilly discusses the imaginary War on Christmas, his favorite holiday topic and one on which he has locked broadcast horns this week with “Daily Show” host Jon Stewart. The alleged attacks on Christmas, O’Reilly charged on his program last night, are the project of “secular progressives,” an interest group that wants to . . . well, let O’Reilly explain:

In order to remake the United States into a progressive nation, the committed left must diminish Judeo-Christian tradition which stands in opposition to them. So they must get the religious influence out, out of the public arena. All the so-called progressive countries are secular. Just look at the map. But here in America we have maintained most of our Judeo-Christian traditions but they are under attack.

What’s one of the ways in which these traditions are under attack? Gay marriage — it’s No. 4 on O’Reilly’s list of priorities for secular progressives. Again, O’Reilly:

Number 4, gay marriage. And here the secular progressives have won. They have turned public opinion around and gay marriage is now legal in many places. Once again, the Judeo-Christian philosophy opposes marriage unless it is between one man and one woman. And it took years for the secularists to hammer that point of view into the wall but they succeeded.

The Erik Wemple Blog throws up its hands. Can anybody make sense of this evolution?