"I believe that marriage is the union between a man and a woman. Now, for me as a Christian, it's also a sacred union. God's in the mix," said Barack Obama at Rick Warren's Saddleback Church on the 2008 campaign trail.

It is hard to believe, I know, but Obama was not then telling the truth. In his new book, "Believer: My Forty Years in Politics," Obama adviser David Axelrod admits as much.

"Opposition to gay marriage was particularly strong in the black church," Axelrod writes of Obama, "and as he ran for higher office, he grudgingly accepted the counsel of more pragmatic folks like me, and modified his position to support civil unions rather than marriage, which he would term a 'sacred union.'"

In those two words, "sacred union," is the rub. Obama not only lied, but he used "God" to sell the lie, a stunning bit of blasphemy in whatever faith Obama professes.

For Obama, lying about his faith was apparently no big deal. As he told Axelrod after stumbling through a question on same-sex marriage, "I'm just not very good at bulls––ing."

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One has to ask, if Obama was willing to bulls–- about his relationship with God, what was he not willing to bulls–- about? Why should anyone, for instance, believe his "for me as a Christian" line?

The Axelrod revelation casts further doubt upon Obama's professed Christianity and fuels the speculation that he might well be a crypto-Muslim.

Obama did little to shore up his Christian credentials in comparing ISIS to the Crusades at least week's much discussed National Prayer Breakfast.

"Everything he does is against what Christians stand for," said Mike Huckabee with good cause on "Fox and Friends."

"And he's against the Jews in Israel. The one group of people who can know they have his undying, unfailing support would be the Muslim community."

"Barry was a Muslim," his third-grade teacher told the Los Angeles Times in 2007, and he did, in fact, register in school in Indonesia as one.

In his memoir "Dreams From My Father," Obama gratuitously uses the Arabic "Andalusia" when referring to Spain.

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In September 2008, in a conversation with George Stephanopoulos set up to quell such rumors, Obama slipped up and referred to "my Muslim faith" before quickly correcting himself.

Slip up or no, he found it "deeply offensive" that the Republican camp was suggesting "that perhaps I'm not who I say I am when it comes to my faith."

In his 2006 book, "Audacity of Hope," Obama presumed to establish "who I say I am." The very title of the book, however, gives the wary reader pause.

Obama names it – misnames it actually – after the life-changing sermon by Jeremiah Wright, "Audacity to Hope." In "Dreams," Obama recounts the sermon approvingly and in some detail.

He cites classic Wright pearls like "White folks' greed runs a world in need" as if they actually made sense. And this, he boasts, is the sermon that set him on the road to Christianity or something like it.

To those paying attention, Obama's conversion seemed as calculated as his choice of wife. Biographer David Mendell notes that in 2004 "Obama, without fail, would mention his church and his Christian faith when he was campaigning in black churches and more socially conservative downstate Illinois communities."

Yet, when Mendell tried to talk to Obama about his faith and his "ever-present Bible," Obama proved "uncharacteristically short" in his responses.

When Mendell persisted, Obama claimed that he was drawn to Christianity because "many of the impulses that I had carried with me and were propelling me forward were the same impulses that express themselves through the church."

In other words, Obama's Jesus thought pretty much along the same secular-humanist lines as Obama himself did.

"It's like church in here," actor Jamie Foxx said at the 2012 Soul Train Awards. "First of all, give an honor to God and our Lord and Savior Barack Obama."

Obama could not have said it better himself. If he really is a secret Muslim, I suspect even Allah must take a seat in the back pews of the Church of Obama.

Media wishing to interview Jack Cashill, please contact [email protected].

