Mark 11:31-33

They began reasoning among themselves, saying, “If we say, ‘From heaven,’ He will say, ‘Then why did you not believe him?’ But shall we say, ‘From men’?”—they were afraid of the people, for everyone considered John to have been a real prophet. Answering Jesus, they *said, “We do not know.” And Jesus *said to them, “Nor will I tell you by what authority I do these things.”