Mark 11:31-33

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 John; if we say ‘humans,’ we’ll be 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 said. Jesus replied, “Then I won’t answer your question either.”