Crucifixion of Our Lord

The daily lectionary readings in Matthew have led us to the crucifixion of our Lord.

The flaming banners of our King advance through his self-offering.
He lived to rob death of its sting; he died eternal life to bring.
A Roman soldier drew a spear to mix his blood with water clear.
That blood retains its living power; the water cleanses to this hour.
The crowd would have been satisfied to see a prophet crucified.
They stumbled on a mystery: Messiah reigning from a tree.
With what strange light the rough trunk shone, its purple limbs a royal throne, its load a royal treasury: the ransom of a world set free. 
The best are shamed before that wood; the worst gain power to be good.
O grant, most blessed Trinity, that all may share the victory.

Does this sound familiar?  Do you recognize these words?