The Gospel revelation is the definitive formulation of a truth already partially disclosed in the Old Testament. But in order to come to completion, it requires the good news that God himself accepts the role of the victim of the crowd so that he can save us all. This God who becomes a victim is not another mythic god but the one God, infinitely good, of the Old Testament.
There is nothing in the Gospels to suggest that God causes the mob to come together against Jesus. Violent contagion is enough. Those responsible for the Passion are the human participants themselves, incapable of resisting the violent contagion that affects them all when a mimetic snowballing comes within their range, or rather when they come within the range of this snowballing and are swept along by it. We don’t have to invoke the supernatural to explicate this.
When Jesus declares that he does not abolish the Law but fulfills it, he articulates a logical consequence of his teaching. The goal of the Law is peace among humankind. Jesus never scorns the Law, even when it takes the form of prohibitions… The disadvantage of prohibitions however, is that they don’t finally play their role in a satisfying manner. Their primarily negative character, as St. Paul well understood, inevitably provokes in us the mimetic urge to transgress them. The best way of preventing violence does not consist in forbidding objects, or even rivalistic desire… but in offering to people the model that will protect them from mimetic rivalries rather than involving them in these rivalries.