Brian Brown, president of the National Organization for Marriage (NOM), opposes gay marriage because a square isn't a circle.

Brown challenged gay activist Dan Savage to a one-hour debate on the subject after Savage gave a speech at a high school journalism conference. In the address, Savage called “bullshit” on the Bible's anti-gay message and several students walked out.

Footage of the debate, which took place on August 15 around Savage's dining room table and was moderated by Mark Oppenheimer of The New York Times, was released on Wednesday.

In his opening remarks, Savage argued that the Bible's irreconcilable conflicts on marriage leave it ineligible as a moral authority on the subject in a modern society.

“I think that conservative Christians can learn to tolerate legal civil same-sex marriage the way they have learned to tolerate legal divorce, which violates Catholic teaching, interfaith marriages and non-religious marriages,” Savage said. “Imposing your interpretation of the Bible on someone else is not religious freedom, as you have attempted to redefine it, that is religious tyranny.”

Brown reiterated throughout the debate that gay marriage supporters were falsely accusing opponents of being bigots.

“What I see attempted here, and sometimes in other things that you've said that I think are much more colorful than what you've just laid out, is the notion that we are deserving – that those of us who know that marriage is the union of a man and a woman – that we are deserving of treatment less than others because we are bigots and we deserve what we get. And I don't think that's true. And I don't think that that helps further the debate. And I think that the attack on Christianity … I don't think people look at that and say, 'Hey, you know, Dan Savage has a point.' If anything, it makes people say, 'Why are you doing this? Why are you doing this? This doesn't further your argument.'”

Brown added that there was no evidence that could change his mind on marriage equality because “this is an area of basic reason. It would be like saying, 'What would convince you that a square could be a circle?” (The video is embedded on this page. Visit our video library for more videos.)

(Related: Mike Huckabee, Tony Perkins call Dan Savage an anti-Christian bully.)