Uncommon Christmas Songs Countdown #7

This is one of my favorite non-traditional Christmas songs. I love Michael Card's masterful weaving of Old Testament themes and New Testament fulfillment. Love-love-love the beautiful irony of the final lines.

What does the Latin part mean?

Vicit agnus noster, eum sequamur: Our Lamb has conquered. Him, let us follow.

Vicit Agnus Noster

Vicit agnus noster, eum sequamur

Did Abraham himself not say God would provide a lamb?
To take himself the punishment that should belong to man.

And so to humble shepherds was his glory first revealed,
and with his birth a covenant made long ago was sealed.

Vicit agnus noster, eum sequamur

Above his dark obscurity the light of God has shown
And through the meekness of the lamb God's strength would be made known

The just and gentle promised one would triumph o'er the fall
And conquer by his own defeat and win by losing all.

Vicit agnus noster, eum sequamur