on that day jesus teaching people in the temple of God and preaching gospel, then come the chief priests and the scribes and elders, and they said to Jesus: "Tell us by what authority you do these things, and who gave you this authority? "jesus said to them: "I'm also ask a question to you. tell me the baptism of John from heaven or from human?" then they consider/discuss it among them, they said: "if we say from heaven, he will say: why do you not believe him? but if we say from human, all the people will throw stone to us, because they convinced/believe that John is a prophet. "then they answer, they do not know where he came from. then jesus said to them: if so, I also dont want tell you by what authority I do these things."
