This thread is intended as a reference for a discussion elsewhere. This is the only forum in CF where I can describe why liberal Christians accept homosexuality and transgender identity.
There have been other threads, particularly on transgender identity, that I’d like to point to. But I haven’t been able to find them, and I’ve tried.
My position is that neither is discussed in Scripture, but that when combined with Paul's teaching on celibacy and Jesus' that we shouldn't obey the Law when it interferes with human welfare, Scripture mandates us to accept gay marriage.
On homosexuality: there are surely prohibitions of same-gender sex (though the OT prohibition is probably only for males).The OT prohibition is part of a code for which maintaining boundaries is important. Hence prohibition against mixing fabrics. In general Christians don’t follow the rules from this code.
The only substantial treatment in the NT is Rom 1. But in Rom 1, Paul is talking about idolatry. He says that idolatry results in corrupted morals, and disordered sexual relationships. His description of same-gender sex follows exactly the 1st Cent Jewish stereotypes (documented by Gagnon), which see same-gender sex as something that people turn to when they’ve gotten bored with normal sex. Hence his comment about exchanging natural intercourse for unnatural.
It’s quite clear that he wasn’t responding to Christians who are attracted only to people of the same gender, and are interested in following normal Christian standards in their relationship. He was talking about Roman orgies. But in my view Paul likely assumed that all same-gender sex was the result of debauchery. That’s what the Jewish culture out of which he came seems to have assumed. But it's not clear how relevant this is. For people who want to follow the letter, it's not about Paul's personal views, but what is in Scripture, and what's in Scripture is condemnation of pagans heterosexuals who after being sated on heterosexual sex, turned to same-gender sex. 1 Cor 6:9 also deals with this as something pagan: Note that 1 Cor 6:9 speaks of what his converts used to be. He doesn't want them to fall back into their old behavior. So it's reasonable to assume that 1 Cor 6:9 is a brief reference to what Rom 1 talks about in more detail.
Homosexuality is certainly an exception to how sex is described in the Bible. In both Genesis and Jesus' treatment of it see marriage between a man and a woman as normal. But that doesn't mean that exceptions are forbidden. Except in sexual areas, Christians generally have no problems making allowance to help people with exceptional conditions live as good a life as possible. In this context that would mean having relations with others of the same gender that otherwise meet the standards for Christian relationships. I don’t think demanding celibacy is an approach we’d take in any other area. (Imagine prohibiting wheelchairs because God made legs and any other mode of transportation is immoral.) Paul recognized that there’s a calling to celibacy, and people without that calling risk falling into worse behaviors if they try it.
My position is that Paul didn't deal with people for whom male-female relationships don't work. (Probably he didn't realize that such people exist, but that's not relevant in this discussion.) After all, the point of Rom 1 wasn't to think carefully about sexual ethics. The point was idolatry. He was just using an example that everyone in 1st Cent Jewish culture would have agreed with. I think the overall teachings of both Jesus and Paul suggest that if presented with the situation of 21st Cent gay Christians, he would not have lumped them together with the pagans he was condemning in Rom 1.
This thread contains references with more detailed treatments of the issue, including my view of Paul's concept of "natural":
Can anyone give me some names of LGBT-affirming christian theologians,philosophers?. You will note that there are pro-gay treatments that I do not recommend, because they make Paul say things that he evidently didn’t say.
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I’m not an expert in transgender identity. I’ve read actual experts, but I find it hard to cite any one specific reference. It does seem clear that there are people that have problems with their sexual identity, and that these problems are serious enough to justify treatment. Many reports suggest that transition helps. (I had an employee go through transition, and the results seem to have been good.) It’s also not a cure-all. Suicide rates still remain higher among people who have transitioned. Personally I’d suggest it as a last resort. But the problem seems real, and I have no problem with people who adopt some or all of a sexual identity opposite to their physical gender to deal with it. I can’t quite understand why many Christians judge these people.
I really don’t see a Biblical issue here. There are plenty of cases where for good reasons we change people from how God made them. We treat birth defects. We amputate parts of the body when survival is at risk. God ordained suffering for childbirth as a punishment, but we deal with it with pain killers or anesthesia. As far as I can see there’s no rational reason why we use legalistic approaches on this one issue.
Here’s an article that discusses the problems that lead to people living as transgender:
Opinion | How Changeable Is Gender?. This article is fairly moderate. It points out that gender reassignment isn’t perfect, though the article doesn’t cite the evidence that it often helps. The Wikipedia article
Gender dysphoria - Wikipedia is a reasonable summary, and does cite that evidence. (It perhaps isn’t quite skeptical enough, which is why I cited both.)
I remind people reading this that this posting is in the Liberal forum. It is a violation of the SOP of this group to condemn gays or trangenders, or Christians who advocate for them.