Mark 10:45 For even the Son of man came not to be ministered unto, but to minister, and to give his life a ransom for many.
To who and why is ransom given? To a captor who is holding someone captive for their release.
Deu 12:31 Thou shalt not do so unto the LORD thy God: for every abomination to the LORD, 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.
A sacrifice is a sacrifice, be it burning of or being nailed to a cross. Now why would God choose something that He abhors to forgive sins?
I am not sure if I am pulling these verses out of context from memory, so check them.
Jeremiah 7:21-22 Thus says the LORD of hosts, the God of Israel, "Add your burnt offerings to your sacrifices and eat flesh. "For I did not speak to your fathers, or command them in the day that I brought them out of the land of Egypt, concerning burnt offerings and sacrifices.
Jeremiah 8:8 How do you say, We are wise, and the law of Yahweh is with us? But, behold, the false pen of the scribes has worked falsely.
We often take whatever is in the bible to be the word of God, but God Himself said there were things that were falsely added by the scribes. Did He prevent it? No. Did He try to correct it? I believe Yashuah was doing just that.
Leviticus 15-1:33 starts of with the Lord spoke to Moses and describes various reasons why pigeons and turtledoves need to be sacrificed in the temple by a priest.
Now Yashuah was touched by a woman who had a constant blood discharge. Did He tell her to go offer pigeons in the temple? Did He consider Himself unclean for being touched by a woman who had a blood discharge? He actually went to the temple and made a scene and drove out the pigeons, turtledoves and animals. Now why is that, if God commanded such practices? If it was just the selling of the animals that bothered Him and not the sacrifices themselves then He would have tried to correct that part of it like He did correct the Sabbath law and not completely do away with it.
Yashuah said He was the resurrection(not a sacrifice), that He was a ransom(not a sacrifice). He sacrificed His life i.e., laid it down for us, but it wasn’t a ritual of sacrifice to appease God but it was a ransom being paid to rescue us from our captivity of sin.
These are the thoughts I have developed from the scripture, so by all means consider and critique them.
Some might argue on the technicality that God abhorred "child" sacrifice and not an adult human sacrifice. I haven't looked into that part of the argument yet.