This chapter explains a lot, its a bit of a key to the whole book.
First sacrifices were happening anyway. People were sacrificing or dedicating the animals they killed to eat off in the fields and in their far flung homes to goat demons etc. The superstitions were there. We saw how easily they fell into worshipping the bull they made. So the temple system viewed in that context centralises and focuses existing practices on the true god, who is present at that location. How often does God revealed 2.0 upgrade the existing spirituality of people? Christians could learn from this… meet them where they are, channel the shared instincts towards the spiritual.
Second, respect for blood. Its a form of respecting God’s creation of life. Last chapter I called sacrifice pagan like and ghastly. But I eat meat, animals die for my plate, and these people faced the reality of killing the animals for their plate in a way I am shielded from.
By respecting the blood, and giving it to God, they are respecting that it is a life a god created life they are taking for their dinner. Vegetarians can argue whether god intended us to be carnivores, but he did at least make some animals need to eat others. Its the way of some things. But within that, there is still a respect for life. To eat an animal that is not drained of its blood is called bloodshed… it is true killing of the beast. God wants the blood returned to him, either at the altar or into the dirt. Modern buzzword would call this mindful meat eating.
Again, it is an upgrade of existing practises, our creator meeting people where they are guiding a people in how to acknowledge him and what is important to him.
I really like the no barriers way of looking at spirituality – christianity is the true path, but God acknowledges the urges in all spirituality.