Mark 11:29
King James Version
“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.”
Context
26But if ye do not forgive, neither will your Father which is in heaven forgive your trespasses.
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 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 will also 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 from heaven, or of 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 if we shall say, Of men; they feared the people: for all counted John, that he was a prophet indeed.