A General Principle. Neither Fat Nor Blood To Be Eaten.
‘It shall be a perpetual statute throughout your generations in all your dwellings, that you shall eat neither fat nor blood.'
This leads on to the final instruction which is to be observed ‘throughout your generations'. It is not just temporary, it is to last while sacrifices are being offered. His people must eat neither the fat nor the blood of offerings and sacrifices.
Unknown to the people, this was partly for hygienic reasons. For both could in fact cause many diseases to be passed on. (Whether Moses had observed this in the circumstances of his life or whether it was God Who bore this in mind for His people we can only surmise). But what was equally important was what they represented. The fat protected the vital parts where the life of the animal was considered to be (see the detailed descriptions above). As such it was part of what was forbidden. Some also alternatively consider that it was seen by the ancients as the best part of the animal, with the result that it had to be given to God as His prime share (both protecting them and leaving them the meat). And the blood was the source of continual life, and when shed brought death. It was ‘the life' of the animal (Leviticus 17:14). No man must partake of the life force of an animal. They are of a different kind from us. So did God for ever distinguish man from brute beast, whereas other religions sought to make them partake of each other. We Christians are not animals. Our essential nature is spiritual. (We will leave the non-believers to become wholly monkeys :-)))).