Mark 11
27 Ref They came again to Jerusalem, and as he was walking in the temple, the chief priests, and the scribes, and the elders came to him,
28 Ref and they began saying to him, "By what authority do you do these things? Or who gave you this authority to do these things?"
29 Ref Jesus said to them, "I will ask you one question. Answer me, and I will tell you by what authority I do these things.
30 Ref The baptism of John -- was it from heaven, or from men? Answer me."
31 Ref They reasoned with themselves, saying, "If we should say, 'From heaven;' he will say, 'Why then did you not believe him?'
32 Ref If we should say, 'From men'"--they feared the people, for all held John to really be a prophet.
33 Ref They answered Jesus, "We don't know." Jesus said to them, "Neither do I tell you by what authority I do these things."