The New John Gill Exposition of the Entire BibleMark 11:28
And say unto him, by what authority dost thou do these
&c.] Enter into the temple, as if he was Lord of it; and
correct in such a magisterial way every thing he thought an abuse in
it; do the miracles he did, as healing the lame, and blind; and take
upon him to instruct the people, a work he was now engaged in:
and who gave thee this authority to do these things?
(See Gill on 21:23).