John Gill Commentary Luke 20:2

"and they spake, saying unto him, Tell us: By what authority doest thou these things? or who is he that gave thee this authority?" — Luke 20:2 (ASV)

And spoke unto him, saying, tell us by what authority
do you these things ?
&c.] The Arabic and Ethiopic versions read, "this thing"; as if the sanhedrim only referred to his preaching the Gospel, which is mentioned in the preceding verse, and was what he was about when they came to him: but the Persic version reads, "all these things"; not only preaching, but working miracles; and particularly driving the buyers and sellers out of the temple, which especially affected them, they losing their rents thereby:

or who is he that gave you this authority ?
God or man? (See Gill on Matthew 21:23).