But he answered them, "An evil and adulterous generation seeks for a sign; but no sign shall be given to it except the sign of the prophet Jonah. For as Jonah was three days and three nights in the belly of the whale, so will the Son of man be three days and three nights in the heart of the earth."

Matthew 12:39-40

We therefore grossly deceive ourselves in not allotting more time to the study of divine truths.

- St. Apollinaris of Ravenna