In Genesis 18, three
elohim ('gods') appeared to Abraham in the plains of Mamre, and Abraham negotiated with one of them,
the Lord, to spare the cities of Sodom and Gomorrah if good men could be found to live there.
Two
elohim went to Sodom and visited Lot at his house. That evening all the men of Sodom surrounded the house, demanding to rape the two 'men' who were visiting Lot. Lot offerred to let them have his two virgin daughters instead, but the
elohim made all the men blind.
If this tells us anything about gays, it first tells us that Lot did not really believe that his neighbours were really gay, or he would not have believed that the offer of his two virgin daughters would dissuade them. And presumably it tells us that all gays are rapists, a claim that we now know to be untrue.
The mythical nature of the story is evidenced not only by the presence of two and three gods (although modern interpretations prefer to call them angels) but also by the story of Lot's wife inexplicably being turned into a pillar of salt. A myth tells us much about the those who created the myth and those who accepted it, but rarely anything about the characters in the myth. In this case, the story tells us more about attitudes to homosexuals rather than about the homosexuals themselves.