Matthew 12:39-41

39He responded, “The people of an evil and unfaithful era look for a miraculous sign. But the only sign they will get is the sign of the prophet Jonah.

40Just as Jonah was in the belly of a huge fish for three days and three nights, so the Son of Man will be in the heart of the earth for three days and three nights.

41The men of Nineveh will stand up with you at the time of judgment and will condemn you, because they turned to God and changed the way they thought and acted when Jonah spoke his message. But look, someone greater than Jonah is here!