Analysis of Couplets

I am for Cutting. I'm a blade
Designed for use at dress parade.
My gleaming length, when I display
Peace rules the land with gentle sway;
But when the war-dogs bare their teeth
Go seek me in the modest sheath.
I am for Cutting. Not for me
The task of setting nations free.
Let soulless blades take human life,
My softer metal shuns the strife.
The annual review is mine,
When gorgeous shopmen sweat and shine,
And Biddy, tip-toe on the pave,
Adores the cobble-trotting brave.
I am for Cutting. 'Tis not mine
To hew amain the hostile line;
Not mine all pitiless to spread
The plain with tumuli of dead.
My grander duty lies afar
From haunts of the insane hussar,
Where charging horse and struggling foot
Are grimed alike with cannon-soot.
When Loveliness and Valor meet
Beneath the trees to dance, and eat,
And sing, and much beside, behold
My golden glories all unfold!
There formidably are displayed
The useful horrors of my blade
In time of feast and dance and ballad,
I am for cutting chicken salad.