Matthew 21:20-29

20When the disciples saw this, they marveled and asked, “How did the fig tree wither so quickly?”

21“Truly I tell you,” Jesus replied, “if you have faith and do not doubt, not only will you do what was done to the fig tree, but even if you say to this mountain, ‘Be lifted up and thrown into the sea,’ it will happen. 22If you believe, you will receive whatever you ask for in prayer.”

23When Jesus returned to the temple courts and began to teach, the chief priests and elders of the people came up to Him. “By what authority are You doing these things?” they asked. “And who gave You this authority?”

24“I will also ask you one question,” Jesus replied, “and if you answer Me, I will tell you by what authority I am doing these things. 25What was the source of John’s baptism? Was it from heaven or from men?”

They deliberated among themselves and said, “If we say, ‘From heaven,’ He will ask, ‘Why then did you not believe him?’ 26But if we say, ‘From men,’ we are afraid of the people, for they all regard John as a prophet.” 27So they answered, “We do not know.”

And Jesus replied, “Neither will I tell you by what authority I am doing these things.

28But what do you think? There was a man who had two sons. He went to the first one and said, ‘Son, go and work today in the vineyard.’

29‘I will not,’ he replied. But later he changed his mind and went.1