The Jews therefore answered him, "What sign do you show us, seeing that you do these things?"

 It is a great characteristic of Jesus that he did not want followers unless they clearly knew and definitely accepted what was involved in following him. He refused--in the modern phrase--to cash in on a moment's popularity. If he had entrusted himself to the mob in Jerusalem, they would have declared him Messiah there and then and would have waited for the kind of material action they expected the Messiah to take. But Jesus was a leader who refused to ask men ever to accept him until they understood what accepting meant. He insisted that a man should know what he was doing. 