Isaiah 9

2 The people who walked in darkness have seen a great light;
those who lived in a land of deep darkness —
on them light has shined.

3 You have multiplied the nation, you have increased its joy;
they rejoice before you as with joy at the harvest,
as people exult when dividing the plunder.

4 For the yoke of their burden, and the bar across their shoulders,
the rod of their oppressor, you have broken as on the day of Midian.

5 For all the boots of the tramping warriors and all the garments rolled in blood
shall be burned as fuel for the fire.

6 For a child has been born for us, a son given to us;

Bits from Brueggemann (1) page 62:

'It is evident that this eloquent poetry admits of a multilayered reading.'
[perhaps Hezekiah, son of King Ahaz is the child; perhaps the Christ.]

'…what we have is a glorious, celebrative affirmation that Yahweh, through a human Davidic king, will create a wondrous new possibility for Judah that is unqualified and unconditional. The theological point is Yahweh's capacity and resolve for newness that is completely fresh and without extrapolation from anything that has gone before.'