It's the third song, "Enanthropoises".
Chris wrote a little post to go with it:
Oh come, oh come, Emmanuel, and ransom captive Israel!
sing songs of reflection, as we should. The incarnation is a stunning
moment, worthy of all our quiet meditation. But it should also remind us
that we are at war. The enhumanment of God the Son was not an olive
branch—it was a frontal assault on the very fortress of the enemy, an
arrow to the eye of the dragon.
We think of the baby in a manger
as God's peace offering to the world, when in reality he was exactly
what the Jews expected the Messiah to be: a mighty king who would smash
through the enemy's resistance and humble every power in the world. They
failed to recognize the enemy. We forget there is an enemy. They got
the trees wrong. We ask, "What's a forest?"
That celebrated birth
was a martial act, the most stunning entry in the millennia-long war.
The manger was the first step on the long march to Golgotha.
Remember, this Christmas, as you celebrate the beauty of that silent, holy night: it was an act of war.
Rejoice, rejoice! Emmanuel has come for thee, oh Israel!