Matthew 12:40
40 For zjust as Jonah was three days and three nights in the belly of the great fish, aso will the Son of Man be three days and three nights in the heart of the earth.
Matthew 16:4
4 mAn evil and adulterous generation seeks for a sign, but no sign will be given to it except the sign of Jonah.” So nhe left them and departed.
Luke 11:30
30 For as xJonah became a sign to the people of Nineveh, so will the Son of Man be to this generation.