Why would a powerful god need or want a blood sacrifice?
Many religions require blood sacrifice to their gods, but why?
Here's an example:
Abel was a keeper of sheep, and Cain a worker of the ground. In the course of time Cain brought to the Lord an offering of the fruit of the ground, and Abel also brought of the firstborn of his flock and of their fat portions. And the Lord had regard for Abel and his offering, but for Cain and his offering he had no regard. So Cain was very angry, and his face fell. The Lord said to Cain, “Why are you angry, and why has your face fallen? If you do well, will you not be accepted? And if you do not do well, sin is crouching at the door. Its desire is contrary to you, but you must rule over it.”
Now my question is not about fairness in the above case. But what would a god do with a sacrifice anyway? Eat it? Let it rot? Do they get it raw and have to cook it themselves?
If gods are so powerful, what could a human offer them that they couldn't get easily for themselves? After all, they're not going to starve if humans don't give them food.
Can anyone suggest why all-powerful gods want offerings of food and in particular meat?
Please assume that the god can get as much food as they want by simply snapping their fingers and creating it - if indeed they want food at all
Why meat and not veg? Are gods carnivores?
If they want impoverished people with no goods or money to show respect, why not just ask them to hit their own thumb with a hammer or similar? In fact, this would be a good test of loyalty for rich and poor alike.