[Update 12/17: I posted a link to additional scriptural citations in a comment below]
Traditionalists often argue that homosexuality is supposedly condemned by the Bible, and that's that.
But it seems to me that, if the literal words of Scripture held the once-and-for-all answers to all moral questions, then we would still be stoning rebellious sons at the town gates, as commanded by Deut. 21:18-21.
(I mentioned the stoning business to my mother on the phone not long ago. No doubt remembering my adolescence, she laughed and responded, "so?")