Most people here who have spent any amount of time studying the bible will agree that the bible allows for more than one interpretation of these topics. Well, the first three topics, anyways.
Reading the gay marriage discussions on this board I see a common thread weaving its way through: NO acknowledgement whatsoever that there is an equally valid interpretation of the bible that DOES NOT condemn homosexuality.
Once in a while I will see the word TRINITY mentioned on this forum and no big deal is made of it (for the most part). Trinitarian and non-Trinitarian teachings are accepted as variations of the Christian understanding of the bible without any judgment being made regarding the genuineness of that person's Christian identity or relationship with God.
Mention the word HOMOSEXUALITY, and there is a huge difference in attitude. A clear black line - even among those who take a more "live-and-let-live" approach to the subject. There is no acknowledgement of a variation in a Christian's understanding of the bible. Rather, it is presented as an indisputable fact that the bible condemns homosexuality and that's that, have a nice day... but live your life the way you want because... who cares what the bible says.
Folks, whether you ultimately conclude the bible allows for Christ-centered, same-sex relationships or not, taking just a little time to do more than a cursory examination of the so-called "clobber passages", the scriptures that supposedly make it SOOooo obvious that homosexuality is condemned by God, you will find that the traditional interpretations are not as firmly based as you think.
If nothing else, you will walk away with a respect for GAY CHRISTIANS - whose relationships with God are just as valid as those who do or do not believe in the trinity.