27 Again they came to Jerusalem. As he was walking in the temple, the chief priests, the scribes, and the elders came to him 28 and said, "By what authority are you doing these things? Who gave you this authority to do them?" 29 Jesus said to them, "I will ask you one question; answer me, and I will tell you by what authority I do these things. 30 Did the baptism of John come from heaven, or was it of human origin? Answer me." 31 They argued with one another, "If we say, "From heaven,' he will say, "Why then did you not believe him?' 32 But shall we say, "Of human origin'?"-they were afraid of the crowd, for all regarded John as truly a prophet. 33 So they answered Jesus, "We do not know." And Jesus said to them, "Neither will I tell you by what authority I am doing these things."
Matthew Henry's Commentary on Mark 11:27-33
Commentary on Mark 11:27-33
(Read Mark 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.