Considering the Jewish do not believe in Jesus, that really has not much prevalence in this discussion. Although I do see the point that people were sacrificing animals and other living organisms in order for forgiveness and redoubt from God.
I guess I should look at different methods of...
It says in the bible and many may have heard that Jesus died for our sins. Being crucified on a cross for his beliefs in order to keep Gods people safe, from sin... So what was going on before Jesus, before the bible was even written? I'm just a curious soul looking for the truth.