Mathew 27 49 Now from the sixth hour until the ninth hour there was darkness over all the land. And about the ninth hour Jesus cried out with a loud voice, saying, “Eli, Eli, lama sabachthani?” that is, “My God, My God, why have You forsaken Me?”
Thanks donnyscot for your question. In my opinion, and it is just an opinion, the term 'all the land' is referring to the spiritual darkness that was upon the land of Judea, described as all the land. 'The land' in the Bible usually refers to the land of God's people, though sometimes in parable form. Luke 23 has a version of this Jesus-on-the-cross story that says that the darkness was not just over all the land, but rather over all the earth. Either this is a fill-in-different-but-important-details of the cross story, or, just as possible, the term earth is a parable term referring to a more specific entity. If the first case is true, then darkness would be everywhere on the planet, a picture really of spiritual darkness. Even so, the term 'the land' in Matthew 27, the chapter you ask about, is probably referring to the land of Judea in my opinion.
As a brief aside: The number three is very frequent in the story of the cross, and from six until nine is three hours. The ninth hour, when Jesus gave his cry and yielded up the ghost, is three times three (nine). Some say three is the number of very abundant witness, and truly Jesus was the faithful witness.
Anyway, if you look in the book of Exodus, you find a very similar-sounding scenario: "And the LORD said unto Moses, Stretch out thine hand toward heaven, that there may be darkness over the land of Egypt, even darkness
which may be felt. And Moses stretched forth his hand toward heaven; and there was a thick darkness in all the land of Egypt three days: They saw not one another, neither rose any from his place for three days: but all the children of Israel had light in their dwellings. "
The interesting thing about this scenario with the land of Egypt is that we know it is a parable picture of something. That is because the land of Egypt is said to be the same as Sodom, and the same as where our Lord was crucified: "And their dead bodies
shall lie in the street of the great city, which spiritually is called Sodom and Egypt, where also our Lord was crucified. " So, in my opinion, the land where our Lord was crucified is also called Sodom and Egypt. What is equally interesting, is that the children of Israel had light in their dwellings. Israel, in the Bible, is a picture of all true believers. It is possible that during the cross, the true believers still had the light of Christ (like the Israelites in dwellings without the darkness of Egypt). Or, maybe, the light of Christ was not there for believers until the resurrection, and the darkness in Egypt is more of a picture of the end times, which would have the light of Christ for all believers distinct from unbelievers.