PRIME Minister Julia Gillard revealed yesterday that her personal stance against gay marriage was due to her conservative upbringing.

Ms Gillard said she was "on the conservative side" of the gay marriage issue "because of the way our society is and how we got here", the Daily Telegraph reports.

"I think that there are some important things from our past that need to continue to be part of our present and part of our future," she said. "If I was in a different walk of life, if I'd continued in the law and was partner of a law firm now, I would express the same view, that I think for our culture, for our heritage, the Marriage Act and marriage being between a man and a woman has a special status.

"Now, I know people might look at me and think that's something that they wouldn't necessarily expect me to say, but that is what I believe.

"I'm on the record as saying things like I think it's important for people to understand their Bible stories, not because I'm an advocate of religion - clearly, I'm not - but once again, what comes from the Bible has formed such an important part of our culture."

Ms Gillard said she had a "pro-union, pro-Labor upbringing in a quite conservative family, in the sense of personal values".

Originally published as Gay marriage against my upbringing