Mark 11:29 in the 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
28 and they began saying to him, “By what authority do you do these things? Or who gave you this authority to do these things?”
29 Jesus said to them, “I will ask you one question. Answer me, and I will tell you by what authority I do these things.
30 The baptism of John—was it from heaven, or from men? Answer me.”