Luke 11:29-30, 32

Now as the crowds were increasing [in number], He began to say, “This [present] generation is a wicked generation; it seeks a sign (attesting miracle), but no sign will be given to it except the sign of Jonah [the prophet]. [Matt 12:39-42] For just as Jonah became a sign to the people of Nineveh, so will the Son of Man also be [a sign] to this generation. [Jon 3:4-10]

The men of Nineveh will stand up [as witnesses] at the judgment with this generation and condemn it, because they repented at the preaching of Jonah, and look, something greater than Jonah is here. [Jon 3:5]