When the sacrifice of animals for the shedding of blood is practiced in the world today by varous religions to appease deity or demon, it’s a dead religion (no pun intended), because Jesus Christ, the Lamb of God, has been the only sacrifice ever needed, his incarnation and physcial death then resurrection unquestionably predicted in the old testament scriptures of the Hebrews, the blood shed by God in the form (elohim is plural) of a man, the Son Jesus in the flesh, so any lamb sacrifice since then has been a waste but for food to eat. Of course we are to be thankful for our food, but killing it does not make you special in God’s eyes, when but what’s important to him is that you embrace the Lamb of God.
From where did the idea come that sacrificing lambs or bullocks would appease the omnipotent? Of course Adam and Eve sinned so God covered their embarrassed nakedness with the skins of slain animals, the shedding of blood for the salvation from that sin and those which then followed. That lesson was learned and passed down to through the tribes even after Noah’s Flood, now dominanting the religious thinking of billions through ritual. But when you look to the Bible as real history to be trusted (see http://genesisveracityfoundation.com), you’ll understand that the scarlet thread leads to Jesus and what he did for all who will receive his gift of pardon and help; it can be for you today, you’d be glad you did.