'By What Authority' in the Bible

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

Jesus answered, and said unto them, "I also will ask of you a certain question, which, if ye assoil me, I in like wise will tell you by what authority I do these things.

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