27 They arrived again in Jerusalem, and while Jesus was walking in the temple courts, the chief priests, the teachers of the law and the elders came to him.
28 "By what authority are you doing these things?" they asked. "And who gave you authority to do this?"
29 Jesus replied, "I will ask you one question. Answer me, and I will tell you by what authority I am doing these things.
30 John's baptism—was it from heaven, or of human origin? Tell me!"