Dear rainycity. I don`t know who exactly started this, but I do know that God was not happy with it, in the O.T. God did say that He was getting tired of blood-sacrifices, and He wanted our Love freely given. When Jesus paid the prize that we owed to God`s Holy Law, and could no pay, and thus became our Saviour, we were free again to approach God. Jesus became our Saviour and was the Sacrifice which had atoned for our sins. While Jesus was living amongst us, He kept telling us to REPENT, to exchange our selfish and unloving character, for Loving God with all our hearts, with all our souls, and with all our minds. ALSO to love our neighbour, all other, friend or foe, as we love ourselves. Jesus had paid for our sins, but we have to Repent, to change into loving sons and daughters. Jesus kept reminding us, " be ye as perfect as God is perfect." Most of us will never become quite perfect, but God sees our hearts, and knows our every thought and wish. God will know how sincerely we have tried to become as loving as God wants us to, selflessly with no strings attached. We have years to learn this, we have Jesus, who will give us His Love, His Joy, and His Peace to share with all we know, or meet. God will forgive us every time we will stumble or fall short. Jesus taught us to pray: Father, give us today our daily bread, and forgive us our sins as we forgive those, who sin against us." Our Love will atone for sins and shortcomings, and Jesus is waiting to lead us home to God, our Heavenly Father. I say this humbly and with love, rainycity. Greetings from Emmy, your sister in Christ.