24 Jesus replied, "I will also ask you one question. If you answer me, I will tell you by what authority I am doing these things.
25 Where did John's baptism come from? Was it from heaven? Or did it come from men?" They talked to each other about it. They said, "If we say, 'From heaven,' he will ask, 'Then why didn't you believe him?'
26 But what if we say, 'From men'? We are afraid of the people. Everyone believes that John was a prophet."
27 So they answered Jesus, "We don't know." Jesus said, "Then I won't tell you by what authority I am doing these things either.
28 "What do you think about this? A man had two sons. He went to the first and said, 'Son, go and work today in the vineyard.'
29 " 'I will not,' the son answered. But later he changed his mind and went.
30 "Then the father went to the other son. He said the same thing. The son answered, 'I will, sir.' But he did not go.