Mark 11:27-33
27And they come again to Jerusalem: and as he was walking in the temple, there come to him the chief priests, and the scribes, and the elders; 28and they say unto him, By what authority doest thou these things? and who gave thee this authority to do these things? 29And Jesus answered and said unto them, I also will ask of you one question, and answer me, and I will tell you by what authority I do these things. 30The baptism of John, was it from heaven, or from men? answer me. 31And they reasoned with themselves, saying, If we shall say, From heaven; he will say, Why then did ye not believe him? 32But should we say, From men—they feared the people: for all held John to be a prophet indeed. 33And they answer and say unto Jesus, We know not. And Jesus answereth and saith unto them, Neither tell I you by what authority I do these things.