Tony Perkins, president of the Christian conservative Family Research Council (FRC), has said that gay marriage only brings “pain and heartache.”

Perkins makes the assertion in a new video calling on members to vote their “Biblical values and make a difference.”

“For nearly a generation we've neglected marriage, leaving it nearly defenseless for homosexual activists who are now trying to redefine marriage out of existence,” Perkins says in the nearly 4-minute video which is part of the FRC's iVoteValues campaign. “Same-sex marriage: it contradicts God's will as revealed in the creator's word. Violating God's law only brings pain and heartache. Right is called wrong and evil is called good. It is because we have yielded moral authority to the demands of special interests or the ruling of some aberrant judge. As a result all of society suffers.”

Also included in the video are David and Tonia Parker, the Massachusetts couple who objected to the inclusion of the picture book Who's in a Family? in their son's public school lessons. (The video is embedded on this page. Visit our video library for more videos.)

(Related: FRC's Tony Perkins asked why he dislikes gay people.)