Potential presidential candidate Mike Huckabee on Sunday described gay marriage as a biblical issue.

The 59-year-old former governor of Arkansas earlier this month left Fox News to consider a bid for the GOP presidential nomination.

During an appearance on CNN's State of the Union, Huckabee insisted that he has gay friends while suggesting that being gay is a choice like drinking or using profanity.

“People can be my friends who have lifestyles that are not necessarily my lifestyle,” he told CNN's Dana Bash. “I don't shut people out of my circle or out of my life because they have a different point of view. I don't drink alcohol, but gosh, a lot of my friend, maybe most of them, do. You know, I don't use profanity, but believe me, I've got a lot of friends who do. Some people really like classical music and ballet and opera – it's not my cup of tea.”

Huckabee also targeted President Barack Obama, who cited his faith in stopping short of endorsing marriage equality in 2008, then said in offering his support four years later that he had “evolved” on the issue.

“But for me, as it was for President Obama in 2008, this is not just a political issue, it is a biblical issue. And as a biblical issue … unless I get a new version of the Scriptures, it's really not my place to say okay, I'm just going to evolve.”

“It's like asking someone who's Jewish to start serving bacon-wrapped shrimp in their deli. We don't want to do that. I mean, we're not going to do that. Or like asking a Muslim to serve up something that is offensive to him, or to have dogs in his backyard,” he added. “We're so sensitive to make sure we don't offend certain religions, but then we act like Christians can't have the convictions that they've had for 2,000 years.” (The video is embedded on this page. Visit our video library for more videos.)

(Related: “Horse apples!”: Mike Huckabee lashes out at GOP over gay marriage.)