Navy chaplain turned anti-gay activist Gordon Klingenschmitt has criticized Newt Gingrich's recent shift on gay marriage.

Gingrich, the former House Speaker and a leading candidate for the 2012 GOP presidential nomination, recently told The Huffington Post that he's prepared to accept “a legal document issued by the state” for gay and lesbian couples.

Gingrich added that momentum is on the side of supporters and that he fears the issue could hurt the Republican Party, whose official platform opposes the legalization of marriage equality.

(Related: Newt Gingrich says it's time to accept the reality of gay marriage.)

In an episode of Klingenschmitt's new daily program, the former chaplain said Gingrich has altered his position to “present himself as the left-wing, moderate Republican candidate” for 2016.

“The Bible condemns him now because he takes pleasure in those who do that sort of thing [homosexuality]. When the Bible condemns his endorsement of homosexual sin then he has become one of the sinners condemned by Romans, Chapter 1,” Klingenschmitt.

“What are the voices that are whispering into Newt Gingrich's ear?”

“On one side is the spirit of God saying, 'Newt stand for righteousness, traditional marriage.' On the other side there's this voice that's tempting him, 'Oh you might be able to get more votes on the Left if you pander to homosexual sin.' So, he's discerning the spirits and he manifests the demonic voice by saying, 'OK, it's not really a sin, we ought to endorse this.'” (The video is embedded on this page. Visit our video library for more videos.)