Matthew 12:39-40

Darby Translation

³⁹ But he, answering, said to them, A wicked and adulterous generation seeks after a sign, and a sign shall not be given to it save the sign of Jonas the prophet.

⁴⁰ For even as Jonas was in the belly of the great fish three days and three nights, thus shall the Son of man be in the heart of the earth three days and three nights.