Isaiah 9:2 NIV

The people walking in darkness
have seen a great light;
on those living in the land of deep darkness
a light has dawned.

Chapter 9 of Isaiah is another great Jesus chapter.  Starting in Chapter 8 this section of Isaiah is an encouragement to “fear God” and to not trust in mediums. 

The land of Zebulun and Naphtali, which was the west side of Galilee, was not part of Judah.  This is the area of Nazareth and where much of Jesus’ ministry took place.

http://bibleatlas.org/gadara.htm