This article by John Piper is just phenomenal. The explaination is so clear.

Sometimes I’ve wondered why Christ had to suffer so violently. I understand.

What we saw this past week in the Islamic demonstrations over the Danish cartoons of Muhammad was another vivid depiction of the difference between Muhammad and Christ, and what it means to follow each. Not all Muslims approve the violence. But a deep lesson remains: The work of Muhammad is based on being honored and the work of Christ is based on being insulted. This produces two very different reactions to mockery.