38 Then some of the scribes and Pharisees answered him, saying: »Teacher, we want to see a sign from you.«
39 He answered them: »An evil and adulterous generation seeks a sign. No sign will be given but the sign of Jonah the prophet.
40 »Just as Jonah was three days and three nights in the belly of the huge fish, so the Son of man will be three days and three nights in the heart of the earth the grave.