Here's a question: I've always thought the old covenant started with Abram - God changed his name to Abraham and told him that his decendants would cover the world and he'd be the father of a new religion. This was re-affirmed with Isaac and Jacob. Then there's the laws given to Moses - some class that as the covenant re-starting. So when did it start?

So confusing!

But as for Lot: Sodom was a bad place, Lot moved there, Abram -> Abraham, Sodom destroyed. So fornication is a Bad Thing still (as if we didn't know that!).