Mark 11:30

And say unto him, By what authority doest thou these things? and who gave thee this authority to do these things?

And Jesus answered and said unto them, ‹I will also ask of you one question, and answer me, and I will tell you by what authority I do these things.›

And they reasoned with themselves, saying, If we shall say, From heaven; he will say, Why then did ye not believe him?

But if we shall say, Of men; they feared the people: for all [men] counted John, that he was a prophet indeed.