38 Then some of the religious teachers and Pharisees came to him and said, "Teacher, we want you to show us a miraculous sign."
39 "An evil and adulterous generation are the ones who look for a miraculous sign. The only sign they will be given is the sign of the prophet Jonah," Jesus told them. 40 "In the same way Jonah was in the belly of a huge fish for three days and three nights, the Son of man will be in the heart of the earth for three days and three nights.