Isaiah speaks of people who are spiritually lost as if they were walking around in total darkness. This can be stated in active form. Alternate translation: "Yahweh will remove the darkness from her who was in anguish" (See: [[rc://en/ta/man/translate/figs-metaphor]] and [[rc://en/ta/man/translate/figs-activepassive]])
"Land" refers to the people who live in an area. Alternate translation: "In the past, the Lord humbled those living in Zebulun and Naphtali" (See: [[rc://en/ta/man/translate/figs-metonymy]])
Here "it" refers to Galilee which represents the people who live there. Alternate translation: "but in the future, the Lord will honor the people of Galilee of the nations, which is on the road between the Mediterranean Sea and the Jordan River" (See: [[rc://en/ta/man/translate/figs-metonymy]])
Here "nations" represents the people from other nations that live in Galilee. Alternate translation: "Galilee, where many foreigners live" (See: [[rc://en/ta/man/translate/figs-metonymy]])