As the historic Supreme Court decision on gay marriage approaches this month, many supporters are all but claiming victory and making passionate arguments about equality and freedom. The opposition, rooted largely in conservative religious beliefs, is perhaps less hopeful but no less passionate. Here's a look at what some key opposition figures are saying:

'Moral law from a moral lawgiver'

Alex McFarland, a self-described “Christian apologetics speaker,” is calling on Christians to fast and pray, specifically asking God that “natural marriage” be the only legally recognized form of marriage in America.

"If the U.S. Supreme Court legalizes gay marriage or somehow sees within the U.S. Constitution a constitutionally protected right for same-sex marriage, what that amounts to – disastrous for the future of our culture – is the rejection of natural law as the basis for our legal system," he told the website OneNewsNow.com.

McFarland contends the Constitution can't really work in absence of belief in moral absolutes because if belief in natural law is struck down, individuals can't argue against other abnormal behaviors.

“And so, not only because of the spiritual implications, but because of the cultural, social, legal, political implications, we must uphold belief in a moral law which comes from a moral lawgiver,” he explains.

'They're toying with something like dynamite'

Roy Moore, the outspoken chief justice of the Alabama Supreme Court, tells CNSNews.com: "They're toying with something that's like dynamite and will destroy our country . . . [and] there are people who would like to see this country destroyed."

Moore said a ruling that legalizes gay marriage would force Americans to accept such marriages and support them through goods and services for same-sex weddings.

'Freedom of speech, press and religion have suffered'

Franklin Graham recently warned that Americans should look north to see negative consequences of legalized gay marriage. "Canada began federally mandating same-sex marriage in 2005," Graham said, according to ChristianPost.com.

"What's happened since then? One result has been that freedom of speech, press, and religion have suffered greatly. If you say or write anything questioning same-sex marriage you could face discipline, termination of employment, or prosecution by the government," Graham said.

"Will the next step be to ban us from speaking God's truth from His Word about this issue?" he asked.

'Stand against this judicial tyranny'

Writing at westernjournalism.com, Attorneys William Olson and Herbert Titus say "our role now, while hoping for the best, is to prepare for the worst -- and that could be terrible indeed."

The two talk about their last Supreme Court brief, "12 Reasons Homosexual Marriage Will Wreck the Nation," and warn that  "the American people need to use the short days remaining before that momentous decision is reached to determine how to respond to an adverse decision. Will they yield to a U.S. Supreme Court that claims the power to override state constitutional and statutory provisions governing domestic relations (an area of law which has historically belonged exclusively to the states)?

"Will they sit back while unelected judges decide for them one of the most important public policy issues of our lifetime? Or will they resist — and, if so, what tools are available to stand against this judicial tyranny?"