Matthew 12:39
39 But he answered them, p“An evil and adulterous generation seeks for a sign, but no sign will be given to it except the sign of the prophet Jonah.
Luke 11:29
The Sign of Jonah
29 cWhen the crowds were increasing, he began to say, “This generation is an evil generation. dIt seeks for a sign, but no sign will be given to it except the sign of Jonah.