When I interviewed for television the Reverend Michael Bray, a prominent American anti-abortion activist, I asked him why evangelical Christians were so obsessed with private sexual inclinations such as homosexuality, which didn't interfere with anybody else's life. His reply invoked something like self-defence. Innocent citizens are at risk of becoming collateral damage when God chooses to strike a town with a natural disaster because it houses sinners. In 2005, the fine city of New Orleans was catastrophically flooded in the aftermath of a hurricane, Katrina. The Reverend Pat Robertson, one of America's best-known televangelists and a former presidential candidate, was reported as blaming the hurricane on a lesbian comedian who happened to live in New Orleans.*) You'd think an omnipotent God would adopt a slightly more targeted approach to zapping sinners: a judicious heart attack, perhaps, rather than the wholesale destruction of an entire city just because it happened to be the domicile of one lesbian comedian.

In November 2005, the citizens of Dover, Pennsylvania voted off their local school board the entire slate of fundamentalists who had brought the town notoriety, not to say ridicule, by attempting to enforce the teaching of 'intelligent design'. When Pat Robertson heard that the fundamentalists had been democratically defeated at the ballot, he offered a stern warning to Dover:

Pat Robertson would be harmless comedy, were he less typical of those who today hold power and influence in the United States.

In the destruction of Sodom and Gomorrah, the Noah equivalent, chosen to be spared with his family because he was uniquely righteous, was Abraham's nephew Lot. Two male angels were sent to Sodom to warn Lot to leave the city before the brimstone arrived. Lot hospitably welcomed the angels into his house, whereupon all the men of Sodom gathered around and demanded that Lot should hand the angels over so that they could (what else?) sodomize them: 'Where are the men which came in to thee this night? Bring them out unto us, that we may know them' (Genesis 19: 5). Yes, 'know' has the Authorized Version's usual euphemistic meaning, which is very funny in the context. Lot's gallantry in refusing the demand suggests that God might have been onto something when he singled him out as the only good man in Sodom. But Lot's halo is tarnished by the terms of his refusal: 'I pray you, brethren, do not so wickedly. Behold now, I have two daughters which have not known man; let me, I pray you, bring them out unto you, and do ye to them as is good in your eyes: only unto these men do nothing; for therefore came they under the shadow of my roof (Genesis 19: 7–8).

Whatever else this strange story might mean, it surely tells us something about the respect accorded to women in this intensely religious culture. As it happened, Lot's bargaining away of his daughters' virginity proved unnecessary, for the angels succeeded in repelling the marauders by miraculously striking them blind. They then warned Lot to decamp immediately with his family and his animals, because the city was about to be destroyed. The whole household escaped, with the exception of Lot's unfortunate wife, whom the Lord turned into a pillar of salt because she committed the offence — comparatively mild, one might have thought — of looking over her shoulder at the fireworks display.

Lot's two daughters make a brief reappearance in the story. After their mother was turned into a pillar of salt, they lived with their father in a cave up a mountain. Starved of male company, they decided to make their father drunk and copulate with him. Lot was beyond noticing when his elder daughter arrived in his bed or when she left, but he was not too drunk to impregnate her. The next night the two daughters agreed it was the younger one's turn. Again Lot was too drunk to notice, and he impregnated her too (Genesis 19: 31-6). If this dysfunctional family was the best Sodom had to offer by way of morals, some might begin to feel a certain sympathy with God and his judicial brimstone.

The story of Lot and the Sodomites is eerily echoed in chapter 19 of the book of Judges, where an unnamed Levite (priest) was travelling with his concubine in Gibeah. They spent the night in the house of a hospitable old man. While they were eating their supper, the men of the city came and beat on the door, demanding that the old man should hand over his male guest 'so that we may know him'. In almost exactly the same words as Lot, the old man said: 'Nay, my brethren, nay, I pray you, do not so wickedly; seeing that this man is come into mine house do not this folly. Behold, here is my daughter a maiden, and his concubine; them I will bring out now, and humble ye them, and do with them what seemeth good unto you; but unto this man do not so vile a thing' (Judges 19: 23-4). Again, the misogynistic ethos comes through, loud and clear. I find the phrase 'humble ye them' particularly chilling. Enjoy yourselves by humiliating and raping my daughter and this priest's concubine, but show a proper respect for my guest who is, after all, male. In spite of the similarity between the two stories, the denouement was less happy for the Levite's concubine than for Lot's daughters.

The Levite handed her over to the mob, who gang-raped her all night: 'They knew her and abused her all the night until the morning: and when the day began to spring, they let her go. Then came the woman in the dawning of the day, and fell down at the door of the man's house where her lord was, till it was light' (Judges 19: 25-6). In the morning, the Levite found his concubine lying prostrate on the doorstep and said — with what we today might see as callous abruptness — 'Up, and let us be going.' But she didn't move. She was dead. So he 'took a knife, and laid hold on his concubine, and divided her, together with her bones, into twelve pieces, and sent her into all the coasts of Israel'. Yes, you read correctly. Look it up in Judges 19: 29. Let's charitably put it down again to the ubiquitous weirdness of the Bible. This story is so similar to that of Lot, one can't help wondering whether a fragment of manuscript became accidentally misplaced in some long-forgotten scriptorium: an illustration of the erratic provenance of sacred texts.

Lot's uncle Abraham was the founding father of all three 'great' monotheistic religions. His patriarchal status renders him only somewhat less likely than God to be taken as a role model. But what modern moralist would wish to follow him? Relatively early in his long life, Abraham went to Egypt to tough out a famine with his wife Sarah. He realized that such a beautiful woman would be desirable to the Egyptians and that therefore his own life, as her husband, might be endangered. So he decided to pass her off as his sister. In this capacity she was taken into Pharaoh's harem, and Abraham consequently became rich in Pharaoh's favour. God disapproved of this cosy arrangement, and sent plagues on Pharaoh and his house (why not on Abraham?). An understandably aggrieved Pharaoh demanded to know why Abraham had not told him Sarah was his wife. He then handed her back to Abraham and kicked them both out of Egypt (Genesis 12: 18–19). Weirdly, it seems that the couple later tried to pull the same stunt again, this time with Abimelech the King of Gerar. He too was induced by Abraham to marry Sarah, again having been led to believe she was Abraham's sister, not his wife (Genesis 20: 2–5). He too expressed his indignation, in almost identical terms to Pharaoh's, and one can't help sympathizing with both of them. Is the similarity another indicator of textual unreliability?