Life in a tomb

How then does this fortune befall my men and I
Who ere this hour had I unto battle charged them strongly
‘Take thy enemy’s life else he takes yours’ said I upon a hill
And around they did gather as an army so gallant and chivalrous

Oaths were sworn ‘Protect thy loves and thy city’ said each one
Swords were drawn shields were lifted under the sway of the battle drum
For yet a man shall cry this day ere he falls to the ground in mortification
Tis an army bred to take life, an army that knows no mercy

Yet take my breath away how comes this unwelcome tune amid a war?
For while men did slaughter each other a humming bird appeared
So out of place it seemed as it rested upon a dying soldier’s chest
And hummed away a tune so heavenly till our swords did shudder
In lieu of death and a sealed tomb, here comes a song of life