The Question of Authority (Mark 11:27-33 *, Luke 20:1-8). Mk. is no doubt right in connecting the priest's question with the purging of the Temple, though these things may include teaching (and healing). For scribes and elders Mt. has elders of the people. By what authority: lit. by what kind of authority, i.e. human or Divine, ecclesiastical or civil.
Related Commentaries of Matthew 21:23
Matthew 21:23-27
23 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 authority?
24 And Jesus answered and said unto them, I also will ask you one thing, which if ye tell me, I in like wise will tell you by what authority I do these things.
25 The baptism of John, whence was it? from heaven, or of men? And they reasoned with themselves, saying, If we shall say, From heaven; he will say unto us, Why did ye not then believe him?
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.