(27-33) And they come again to Jerusalem.--See Notes on Matthew 21:23-27. Peculiar to St. Mark is the fact that our Lord was "walking" as well as teaching in the Temple.

Verses 27, 28. - By what authority doest then these things? We learn from ver. 18 float the chief priests and scribes had already been seeking how they might destroy him, and they wanted to establish some definite charge, whether of blasphemy or of sedition, against him. They now approach him as he walked in the temple, and demand by what authority he was doing these things, such as casting out the profaners of the temple, teaching and instructing the people, accepting their Hosannas, etc. And who gave thee this authority to do these things? According to the best reading, this sentence should run, or (η} instead of καὶ) who gave thee, etc., instead of "and who gave thee," etc. So that the questions are directed to two things - was his authority inherent? or, was it derived?

11:27-33 Our Saviour shows how near akin his doctrine and baptism were to those of John; they had the same design and tendency, to bring in the gospel kingdom. These elders did not deserve to be taught; for it was plain that they contended not for truth, but victory: nor did he need to tell them; for the works he did, told them plainly he had authority from God; since no man could do the miracles which he did, unless God were with him.And they come again to Jerusalem,.... The Persic and Ethiopic versions read, "he came", which must be understood with his disciples; for they never parted from him till he was apprehended in the garden. Luke says, Luke 20:1, that it was "on one of those days"; and the Persic version here reads, "on another day": it was the day after the cursing of the fig tree, and two days after his public entrance into Jerusalem:

and as he was walking in the temple; not alone, but his disciples with him, and a multitude of people, whom he was teaching and preaching the Gospel to, as he walked to and fro; and whilst he was there employed,

there come to him the chief priests, and the Scribes, and the elders: the Jewish sanhedrim; for of these that great council of the nation consisted; See Gill on Matthew 21:23.