In recent years, the marriage debate has resembled an athletic event: gay activists on the offense and traditional marriage supporters playing defense, at best.
A recent poll shows 72 percent of Americans believe gay marriage is inevitable for the United States.
But a traditional marriage movement whose leaders represent a new generation has entered the game, and it is gaining steam.
"The other side has been preparing the seeds for this debate for 20 or 30 years and they've been well-prepared, well-organized and the response is just in its infancy," Ryan Anderson, with the Heritage Foundation, told CBN News.
It's a debate known for highly charged emotion and rancor, as Anderson well knows. He willingly enters hostile arenas like CNN's "Piers Morgan Show."
Anderson sees it as a calling that goes back to his days at Princeton when he saw the traditional marriage side being dismissed, although it carried a stronger argument.
"I said, 'I almost have a duty, an obligation to be making these arguments because I understand what both sides are saying and where the disconnect is,'" Anderson said.
To that end, Anderson recently co-authored the book What Is Marriage, in which he argues that the government should support traditional marriage because of its link to child welfare.
"We could get government out of the bedroom if it weren't for the fact that a certain type of act between a man and woman creates new life, and children need moms and dads," he said.
The New York Times recently recognized Anderson and other movement leaders like Caitlin Seery, who directs the Love and Fidelity Network on college campuses.
"We are trying to help students prepare themselves for healthy marriages so they will then raise healthy families because healthy families are the foundation of our society," Seery told CBN News.
What Seery, Anderson, and other supporters of traditional marriage have in common is a willingness to face fierce opposition and think outside the box about what is possible.
They're up against a Supreme Court that may soon decide in favor of gay marriage and a country in which the majority believe that its legalization is inevitable.
Polls show almost half of all Americans believe that homosexual behavior is a sin. Those with such deeply held beliefs will no doubt welcome a movement that would champion their cause and provide profound arguments in favor of one of life's most sacred institutions.