In tonight's Talking Points Memo, Bill O'Reilly drew a comparison between the Supreme Court's ruling on abortion and the current debate over gay marriage.

O'Reilly explained that the 1973 ruling "contradicts the Christian tenet that all life is sacred, and that man does not have the authority to decide when life begins outside of conception."

"The Factor" host stated that the ruling put the government directly against the Catholic Church and many protestant churches. He explained that abortion is a "grave sin" in Christian theology, but is legal under the Constitution.

O'Reilly said that "the gay marriage situation is similar, but not nearly as intense."

"Some Americans oppose homosexual nuptials because of certain passages in scripture," he said. "However, being gay is not a sin in itself. In our secular country, religious belief is not a basis for law, and the Supreme Court will rule on gay marriage shortly."

He remarked that no matter what the Supreme Court decides, "some Christians will continue to oppose gay marriage on moral grounds."

O'Reilly stated that if you're against gay marriage, then "you are labeled as a homophobe or a bigot."

"It is long past time for the secular progressive movement to stop denigrating people of faith," he said. "I believe most fair-minded Americans get angry when they hear fanatics attacking folks who believe differently than they do...The big reason the secular progressive movement has succeeded so well is the lack of religious leadership in America." 

Watch the Talking Points Memo above. 

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