What, EXACTLY does God say about human sacrifice in the TaNaCH? In Deuteronomy 12:30-31, God calls Human sacrifice something that He hates, and an abomination to Him, "for every abomination to the Eternal, which he hateth, have they done unto their gods; for even their sons and their daughters they have burnt in the fire to their gods. In Jeremiah 19:4-6, God tells us that Human sacrifice is so horrible a concept to Him, that it did not even come into His mind to demand it from His creation, "They have built also the high places of Baal, to burn their sons with fire for burnt offerings unto Baal, which I commanded not, nor spake it, neither came it into my mind." We see the same thing in Psalm 106:37-38, and in Ezekiel 16:20. This means that God would not accept Jesus's death on the cross as a blood sacrifice for the forgiveness of sins. The very idea of that God would accept a human sacrifice for the forgiveness of sins is UnBiblical.
Christians identify Messiah with Jesus and define him as God incarnated as a man, and believe he died for the sins of humanity as a blood sacrifice. This means that one has to accept the idea that one person's death can atone for another person's sins. However, this is opposed to what the Bible says in Deuteronomy 24:26, "Every man shall be put to death for his own sin," which is also expressed in Exodus 32:30-35, and Ezekiel 18. The Christian idea of the messiah also assumes that God wants, and will accept, a human sacrifice. After all, it was either Jesus-the-god who died on the cross, or Jesus-the-human. Jews believe that God cannot die, and so all that Christians are left with in the death of Jesus on the cross, is a human sacrifice. However, in Deuteronomy 12:30-31, God calls human sacrifice an abomination, and something He hates: "for every abomination to the Eternal, which he hateth, have they done unto their gods; for even their sons and their daughters they have burnt in the fire to their gods." All human beings are sons or daughters, and any sacrifice to God of any human being would be something that God would hate. The Christian idea of the messiah consists of ideas that are UnBiblical.