But He answered and said to them, “An evil and adulterous generation seeks after a sign, and no sign will be given to it except the sign of the prophet Jonah.” Matthew 12:39
As events unrolled in God’s astounding providence, they got their signs as well. On the day of His crucifixion there was darkness all over the land, from the sixth to the ninth hour. Before, the Jews had been spared that when they lived in Goshen, and Yahweh was expressing His displeasure with Pharaoh. This time it was just for them.