and said to him, “Tell us by what authority you do these things, or who it is that gave you this authority.”
In this passage of story nothing is added here to what we had in the other evangelists; but only in the first verse, where we are told, I. That he was now teaching the people in the temple, and preaching the gospel. Note, Christ was a preacher of his own gospel.
Commenting on Luke 20:1-8
And spoke unto him, saying, tell us by what authority doest thou these things?.... 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...
By what authority, etc. - See the note on Mat 21:23-27 (note).