1And when he entered the temple, the chief priests and the elders of the people came up to him 2as he was teaching, and said, 3"By what authority are you doing these things, and who gave you this authority?"
References for Matthew 21:23
Jesus answered them, "I also will ask you one question, and if you tell me the answer, then I also will tell you by what authority I do these things.
The baptism of John, 4from where did it come? 5From heaven or from man?" And they discussed it among themselves, saying, "If we say, 'From heaven,' he will say to us, 6'Why then did you not believe him?'
References for Matthew 21:25
But if we say, 'From man,'7we are afraid of the crowd, for they all hold that John was 8a prophet."
References for Matthew 21:26
So they answered Jesus, "We do not know." And he said to them, "Neither will I tell you by what authority I do these things.