The scenario of sin. If everything happens according to God's will, then the scenario he chose to create included sin and foresight of having to arbitrarily take human sacrifice as a payment for it. Think of how barbaric it is to burn an animal as a sacrifice to a god.. You believe the god you worship once loved the smell of burning animal flesh. Just look at how a once ignorant belief in gods (Yahweh of Elohim was once one god of many) evolves over time to be more accepted by more people. It's easy to see that it's not true and never was. Christianity is a chameleon of sorts, always changing to fit what's going on, with no truth to it at all.