What does Isaiah 9:1 mean?
Commentators suggest this verse might fit better as the conclusion to Isaiah 8. Isaiah has been describing the gloom of anguish and thick darkness that will fall upon those who reject God's Word (Isaiah 8:20–22). No relief of morning's light will come for them.Now, Isaiah speaks of a time to come, when that despair and darkness will lift. The anguish will end in Israel. Specially, he is speaking of the northern region of Israel that once belonged to the tribes of Zebulun and Naphtali. That area was the first to be hit by the destructive power of the Assyrians as they swept through the land. The area around the Sea of Galilee was taken by Tiglath-pileser, king of Assyria, around 733 BC. The Assyrian king repopulated it with Gentile settlers from other lands.
Assyrian records from that time show that this conquered, occupied region was divided into three Assyrian districts. Isaiah mentions those same three districts in this passage. "Galilee of the Gentiles" was also known as the Megiddo province: from the Litani River in the north to the Valley of Jezreel. "The way of the sea" is the Dor province: along the Mediterranean from Joppa to Haifa. And "along the Jordan" or "beyond the Jordan" is Gilead: territories east of the Jordan River from the Dead Sea to the Sea of Galilee.
Isaiah speaks, though, of a time to come when this region will be made glorious once more. The darkness will be dispelled. The light will return in splendor in the form of a child who will become much more than just a king. He will be the Messiah.