Now when he was in Jerusalem at the Passover, during the feast, many believed in his name, observing his signs which he did.

 What enraged Jesus was that pilgrims to the Passover who could ill afford it, were being fleeced at an exorbitant rate by the money-changers. It was a rampant and shameless social injustice--and what was worse, it was being done in the name of religion. 