21-22 But Jesus was matter-of-fact: “Yes—and if you embrace this kingdom life and don’t doubt God, you’ll not only do minor feats like I did to the fig tree, but also triumph over huge obstacles. This mountain, for instance, you’ll tell, ‘Go jump in the lake,’ and it will jump. Absolutely everything, ranging from small to large, as you make it a part of your believing prayer, gets included as you lay hold of God.”
23 Then he was back in the Temple, teaching. The high priests and leaders of the people came up and demanded, “Show us your credentials. Who authorized you to teach here?”
24-25 Jesus responded, “First let me ask you a question. You answer my question and I’ll answer yours. About the baptism of John—who authorized it: heaven or humans?”
25-27 They were on the spot and knew it. They pulled back into a huddle and whispered, “If we say ‘heaven,’ he’ll ask us why we didn’t believe him; if we say ‘humans,’ we’re up against it with the people because they all hold John up as a prophet.” They decided to concede that round to Jesus. “We don’t know,” they answered.Jesus said, “Then neither will I answer your question.
28 “Tell me what you think of this story: A man had two sons. He went up to the first and said, ‘Son, go out for the day and work in the vineyard.’
29 “The son answered, ‘I don’t want to.’ Later on he thought better of it and went.
30 “The father gave the same command to the second son. He answered, ‘Sure, glad to.’ But he never went.