So, in Exodus 19, the Israelites arrive at Mount Sinai, and God tells Moses to tell them they can be his special people if they obey his laws. But the Israelites are like, 'Whatever, sure,' and Moses is all, 'No, really, like it's important, okay?!' So God's all, 'Fine, here's the deal: you obey, I'll be your God, and you'll be my special people. Deal?' And the Israelites are like, 'Yeah, okay, we'll do it!' So God sets up a bunch of rules and regulations and then tells them to keep themselves clean for three days - like, no touching animals, no sex, no washing clothes - and then he'll come down on the mountain like a big, scary, fire-breathing dragon. The Israelites are like, 'Uh, okay, sure, sounds...fun?' The End.