He then proceeded to Nineveh to proclaim the urgent need for repentance, warning that the city would face destruction in forty days. The people of Nineveh heeded God's words through Jonah, proclaimed a fast, repented of their sins, and were spared.
Bishop Michael explains that the term "great fish" in Jonah's account does not specifically denote a whale but refers to a large fish of any kind; it could very well have been a shark, capable of swallowing a person whole. If it were indeed a whale, it likely was a rorqual, a type found in the Mediterranean Sea, characterized by a sizable throat pouch that could hold a man without subjecting him to the digestive process. Jesus drew a parallel between Jonah’s three days and nights in the fish’s belly and His own future three days and nights in the grave, asserting this in the context of His own resurrection. The Gospels affirm that Christ passed away at three in the afternoon on Friday and rose from the dead before dawn on the ensuing Sunday, after the Sabbath.
When dividing the twenty-four hours into day and night, one might argue that Christ was entombed for only two days and two nights. This raises the question of reconciling this measurement with Jesus’ statement that He would be in the heart of the earth for three days and nights. The reconciliation lies in the Jewish method of counting days, which begins at sunset or six in the evening. Hence, the first day of Christ’s entombment is marked from Friday's end, the second day spans from Friday sunset to Saturday sunset, and the third day begins from Saturday's sunset, logically aligning with Jesus' prophecies regarding His resurrection on the third day.
Regarding the three nights, however, reconciling Jesus’ prediction with His burial is challenging. The Venerable Isidore Pelusiot suggests that the darkness from noon to three on Friday, during Christ's crucifixion, should be counted as one night, followed by the night from Saturday to Sunday being counted as the third. This reasoning, however, overlooks the fact that Christ's time in the heart of the earth should be measured from His burial rather than His death, which occurred as darkness fell at noon. Consequently, while one might consider the eclipse as nighttime, it is crucial to recognize that this night ended prior to Christ being placed in the tomb, thus cannot be counted toward the three nights.
In truth, artificial efforts to speculate a nonexistent third night are unnecessary. Christ often foretold His death, affirming each time that He would rise on the third day — a prophecy that was fulfilled with precision. In considering Jesus’ analogy of His stay in the tomb to Jonah's time in the fish, it is essential to recognize that a simple comparison does not necessitate an exact correlation of details. The prediction must adhere to every precise element, while the analogy aligns mainly in significant aspects. Therefore, it is misguided to search for a perfect parallel between the narrative of Jonah and Christ’s entombment. The reference to Jonah served as a sign to the Pharisees, symbolizing the fate that awaited Christ; though He would be put to death, He would triumph over the grave on the third day. Importantly, Jonah did not die and rise again, but remained alive within the fish. Jesus, however, truly died and resurrected. Thus, if these accounts diverge at a fundamental level, it stands that no further attempt should be made to assert a non-existent third night as indicated in the prophecy.