"For me the creator, Allah, who created us, who knows us better than we know ourselves, made it (homosexuality) forbidden," he added to the Daily Telegraph. "That is what the creator has set, these are his perimeters, not mine, and I follow them."
Mundine will become the first intruder on the show on Monday night after a mixed bag of celebrities — including tennis player Bernard Tomic and former AFL footballer Josh Gibson — were unveiled on Sunday.
It's not the first time he has publicly voiced his opinion on gay people, using Facebook to express his disappointment in an ABC program that looked at indigenous same sex couples who wanted to have children.
"Watching redfern now & they promoting homosexuality! (Like it's ok in our culture) that ain't in our culture & our ancestors would have there head for it! Like my dad told me God made Adam and Eve, not Adam and Steve," Mundine wrote.
In a pointer for the show, Mundine described himself as "probably the best athlete you'll ever see" as his participation was revealed.
He offered an insight into his beliefs by declaring "I should have been born in the '40s and '50s".
"I'm from their sort of era, their traits and their beliefs back then," Mundine said. "Where the men were the men and the women were the women. Not the man trying to be the woman and the woman trying to be the man."
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