'By What Authority' in the Bible

And when he had come into the temple, the chief priests and the elders of the people came to him as he was teaching, and said, By what authority doest thou these things; and who gave thee this authority?

And Jesus answered and said to them, I also will ask you one thing, which if ye tell me, I also will tell you by what authority I do these things.

And they answered Jesus, and said, We cannot tell. And he said to them, Neither do I tell you by what authority I do these things.