This is a gender creation story, not a creation of marriage story. Adam and Eve do not exchange rings, say “I do” and have a jazz band reception in Paradise.
The Bible “says” a lot of things but perhaps we should treat the Bible less like an authoritative contract with God and understand it more as a human-authored, divinely-inspired, document that arouses a life of faith.
So does the Bible have anything to “say” about gay marriage? The Bible is not specific, literate, or even concerned with what we call same-sex orientation or gay marriage. But the state of New York recently had quite a lot to say about gay marriage. Those that would insert the Bible into this debate would do well to reflect upon the text itself. If only we quit focusing on what the Bible didactically “says” and converse with the text in its broader cultural context. Then one can realize the multivalent value of such a book that a narrow reading cannot service.