Matthew 12:37-41

For by your words you will be justified, and by your words you will be condemned.” The Desire for Signs

Then some of the scribes and Pharisees said to Him, “Teacher, we want to see a sign from You.”

But He answered and said to them, “An evil and adulterous generation craves a sign; and so no sign will be given to it except the sign of Jonah the prophet;

for just as Jonah was in the stomach of the sea monster for three days and three nights, so will the Son of Man be in the heart of the earth for three days and three nights.

The men of Nineveh will stand up with this generation at the judgment, and will condemn it because they repented at the preaching of Jonah; and behold, something greater than Jonah is here.