That's a good subject to discuss, but it really belongs on its own thread since this one was about the centurion, not about David and Jonathan or Ruth and Naomi.

In any case, I think there is a pretty good case for saying that David and Jonathan were in love. However, there is one thing that puts a big question mark on that possibility. We know that David's downfall was due to his weakness for good looking women. Therefore, it makes little sense that he would be gay. So, could he have been bisexual? It's possible. But it's just as likely that David and Jonathan were simply best friends; blood brothers if you will.

I am not as convinced that David and Jonathan were lovers as I am that the Centurion was a pederast. However, a very similar thing applies to this story as to the centurion one. We know that the Old Testament is filled with all too human figures whom God used despite their failures. We know that Solomon had many wives and many slaves, for example, and that Moses was a murder. The history of Israel is filled with sinful human beings who are used by God despite their failures. It's not a history filled with stories of the triumph of the human spirit, it's a history filled with the stories of the triumph of the holy spirit. Even if David were bisexual, this would not constitute a biblical endorsement of bisexuality any more than the presense of slaves in the kingdom constitutes a biblical endorsement of slavery.

As for Ruth and Naomi, the link here is far weaker than in either of the two previous stories. There is never any indication at all that there might be lust between them. In fact, Naomi refers to Ruth as "my daughter" in Ruth 2:2. This in no way resembles a lesbian relationship. It is much more likely that this story is exactly what it appearss to be, a story about a daughter in law not willing to let her mother in law die or live life as a beggar; the only two possibilities for a widow of her age in that time period. Instead, she is willing to remain faithful and stay with her until she is able to provide for her well being through marriage.

As for Old Testament prohibitions on homosexuality, they are enshrined in the most precious gift of God to the Israelite people; the law. See leviticus 18:22 for an example. This prohibition on homosexual acts is on the same list as human sacrifice and sex with animals and it is followed by an explenation that God finds these things so detestable that peoples who did them in the past were "vomited from the land" because they had defiled it. The law demanded that anyone committing any of these acts be cut off from their people.