Leviticus is another book of laws. A lot of Christians like to use the anti-homosexuality stuff, but completely ignore the crap about killing kids who talk back to their parents. The truth is no one is a fundamentalist; everyone cherry picks the Bible according to their own prejudices.

Chapter 1 starts off with a very detailed account on the best way to sacrifice to Yahweh. To sacrifice, it is necessary to follow these important rules. It can be summed up as follows:

1. Pick an unblemished male from your livestock. No females, that's just gross.
2. Kill the animal, let the blood sprinkle around the altar. You know - let it marinate!
3. Cut the animal into little pieces.
4. Light it on fire, because God loves the smell of burning meat. Wait ... don't we all? Barbecues, anyone?

If you're sacrificing a sheep, be sure to kill it on the north side of the altar.

And there is an explanation on how to sacrifice birds:

1. Pick out a turtledove or a young pigeon. Don't show off and sacrifice an ostrich, guys.
2. On the altar, rip off its head, and let the blood drip to the side of the altar.
3. Pluck its feathers, and cast those darn feathers to the east of the altar! Cut up its wings.
4. Finally, burn it.

Hey, Yahweh's a cool guy! He loves a good barbecue. It's a sloppy, bloody barbecue where no one eats; but you gotta hand it to Him for style. His rules on animal sacrifice make for an interesting form of entertainment. And He just wants to smell it! F*!& oxygen bars; that's for wimps! Yahweh's gotta love my house on the weekends, then. Too bad no one says grace there, though.

The rules on animal sacrifice go on until Chapter 7, and prescribe animal sacrifices for very specific 'sins', like 'sinning through ignorance', or 'lying about possessing someone else's property'. The prescription for the latter is to first return the property, plus a fifth more than its value. Then, the lying thief has to bring one of his flock and have a priest atone for his lying. Any leftover meat from the sacrifice goes to the priest (in this case the priest is Aaron) and his sons.

It's a very lucrative occupation to be a priest in Bronze Age Israelite culture.