A lot has happened since the 1st century...why must we try to conform to a 1st century sensibility on this issue? If homosexuality was such a terrible threat to faith, why did Jesus not address it?
The Bible is beautiful, but there is a lot of stuff in there that really is reflective of the times in which it was written...for instance telling slaves to not try to become free men and to dutifully obey their masters. Southern slaveowners used that to say that the Bible tolerated slavery.
Luckily, God gave us the capacity to grow in our understanding...and many of our cultures have evolved past things like slavery. Why must we pretend that the last 2000 years of human progress hasn't happened? In the 1st century, slavery was OK, racism was OK, torture was OK, and the death penalty was everywhere. Women were property. This was the context in which the Bible was written, and in which the scriptures were codified and interpreted.
I am glad to live in a society where there is no longer slavery, where racism is frowned upon and where we are moving towards full gender equality. I would not wish to give any of those things up to fit into a 1st century paradigm. When we read the scriptures we need to be cognizant that they were written at a particular time, in the context of a particular culture, and therefore reflects the values of a society very different from ours.
The Bible did not drop, complete and inerrant, out of the sky. There exist hundreds of different translations, with different wordings and verb tenses, etc. While I do not doubt that God inspired the writing of scripture, the fact remains that it was up to human beings to receive the message correctly and for scribes to translate correctly without altering the text, which was a widespread problem in the ancient world. And the fact remains, that if there is indeed a perfect copy/translation of scriptre out there, we have no way of knowing for sure which translation is the right one.
Because we cannot find a translation that is totally perfect, I think we need to be very careful about making an entire group of people second class citizens on the basis of the say-so of an ancient manuscript whose original does not exist and whose accuracy (the accuracy of any given translation) we cannot be completely sure of...
Really, think about it. If you didn't know it was the Bible, and I told you that society could only grow and evolve in ways that fall into line with the message in a book written in the first to 4th centuries (finally codified in the 4th century), what would you think? Especially since there are several different translations, we don't know which (if any) is totally accurate...that we don't even have a copy of the original text....that we have copies of copies of copies from an era where scribes took frequent liberties...and that the text is very poetic and metaphorical and is open to very varied interpretation, depending on your POV?
We are asking gay people to give up ever being in a love relationship...would any of you give up your spouse? On the chance that
1. The writers of the book got it 100% correct.
2. That it was meant to be taken literally instead of metaphorically, even though Jesus Himself spoke in parables.
3. That all of the translators and scribes got it correct (despite the evidence of hundreds of differing versions) in your particular translation.
4. That those who interpret the text (which can be contradictory) got it 100% correct.
5. And that God said all He ever intended to say by the 4th Century.
Honestly, would you give up the person you love...or would you go into the text of the book and see that:
1. We are no longer under the law of the OT
2. We are all sinners who fall short of the glory of God and are all dependent upon grace for salvation.
3. His grace is sufficient for us, despite our brokenness.
4. While there are places that seem to condemn homosexuality, there are also places that condemn a zillion other things like ham, shrimp, and demand animal sacrifices.
5. Jesus Himself loved the lowly, nurtured the outcast, and came for sinners. He knew we were imperfect and broken but came anyways.
I am concerned about this trend to act like we earn salvation by our own merits and works. If we are saved, remember that it is by the grace of God who redeems us despite our sins.