Jesus was a divine scapegoat. He not only revealed to us what God had been doing all along, but also unmasked the scapegoat mechanism for all to see. Through Jesus, we see the truth of violence, that it comes from us, and not from God.
God is a divine scapegoat, allowing us to blame Him for our violence, so that He can carry our violence away and rescue us from violence. Without the scapegoat mechanism, human culture would collapse upon itself in a never-ending cycle of progressive violence.