This just tells us how utterly evil your god is. As Christopher Hitchens said, it creates us sick and commands us to be well - and then punishes us for being sick. The amount of doublethink in this type of Christianity is breathtaking.
God created us "good". He set things up so that he is in authority over us, as we were in authority over the animals. If your employer leaves £5 on his desk, it isn't hard to not steal it, he already pays you enough. In Eden the situation arose where we rejected his authority (see below), so he cut us off from Eden and the tree of life. Eventually our body dies, at which point we are permanently cut off from God, no longer able to speak to him and separated from him for ever. While we live we can still turn back to him, and submit to his authority, but we still have the tendency to rebel and need to keep turning back.
Sacrificing person A for person B's benefit is immoral, regardless of what the benefit to person B, notwithstanding it's difficult to imagine a scenario where subject B's moral improvement would require person A's sacrifice.
If person A steps forward and allows it to happen?
All the others were symbollically dead? How does symbolic death work, do those Egyptian parents get their children back two days later, or is that just God?
O.
How does the sacrifice work, is the first question. After Adam and Eve sinned, God promised that Eve's offspring would crush the head of the serpent who had deceived them. The way this works is that first God loves us so much that he sent his son, the second person of the trinity, to be born as the offspring of Eve, in order to crush the head of the serpent. With the devil gone, paradise (communion with God) will one day be restored, and God promises that by faith we can inherit this promise. However, in the process of the serpent being crushed, the Adam's offspring's heel would be struck by the serpent, picturing the death of the Son as he defeated the devil. Jesus faced the devil and overcame temptation, but in the process was struck by the devil, through the people who killed him. This is the sense in which Jesus was a sacrifice.
The animal sacrifices go back to the garden of Eden, where God had to kill animals to cover A&E and deal with their shame. I'm still not completely sure why God instructed Israel to make sacrifices, but they seem to have been an outward sign of repentance and a way in which they could be assured of God's forgiveness. They were worthless without obedience to God (Hosea 6:6, 1 Samuel 15:22, Matthew 9:13, Mark 12:33). They signified faith in God's promise to restore mankind to fellowship with him; this was the part they played in defeating the devil - they enabled the people of God to continue to worship him while the nations around worshiped false gods, thus eventually the Messiah would be born to complete the work of defeating Satan so that mankind could, at his return, be restored to 'paradise'.
God knew all this would happen. He did it to demonstrate the fullness of his nature and glory.
