Matthew 21:27 KJV
And they answered Jesus, and said, We cannot tell. And he said unto them, Neither tell I you by what authority I do these things.
Matthew 21:27, King James Version
In context
26 But if we shall say, Of men; we fear the people; for all hold John as a prophet.
27 And they answered Jesus, and said, We cannot tell. And he said unto them, Neither tell I you by what authority I do these things.
28 But what think ye? A certain man had two sons; and he came to the first, and said, Son, go work to day in my vineyard.