And that comrade
who meets his death and destiny, speared or stabbed,
let him die! He dies fighting for fatherland —
no dishonor there!

[ὃς δέ κεν ὑμέων
βλήμενος ἠὲ τυπεὶς θάνατον καὶ πότμον ἐπίσπῃ
τεθνάτω: οὔ οἱ ἀεικὲς ἀμυνομένῳ περὶ πάτρης
τεθνάμεν.]

Homer (fl. 7th-8th C. BC) Greek author
The Iliad [Ἰλιάς], Book 15, l. 494ff (15.494) [Hector] (c. 750 BC) [tr. Fagles (1990), l. 574ff]
    (Source)

Original Greek. Alternate translations:

If any bravely buy
His fame or fate with wounds or death, in Jove’s name let him die.
Who for his country suffers death, sustains no shameful thing,
[tr. Chapman (1611), l. 452ff]

Death is the worst; a fate which all must try;
And for our country 'tis a bliss to die.
The gallant man, though slain in fight he be,
Yet leaves his nation safe, his children free;
Entails a debt on all the grateful state;
His own brave friends shall glory in his fate.
[tr. Pope (1715-20)]

Therefore stand fast, and whosoever gall’d
By arrow or by spear, dies -- let him die;
It shall not shame him that he died to serve
His country.
[tr. Cowper (1791), l. 599ff]

Whichever of you, wounded or stricken, shall draw on his death and fate, let him die; it is not inglorious to him to die fighting for his country.
[tr. Buckley (1860)]

And if there be among you, who this day
Shall meet his doom, by sword or arrow slain,
E’en let him die! a glorious death is his
Who for his country falls.
[tr. Derby (1864)]

If any of you is struck by spear or sword and loses his life, let him die; he dies with honour who dies fighting for his country.
[tr. Butler (1898)]

If so be any of you, smitten by dart or thrust, shall meet death and fate, let him lie in death. No unseemly thing is it for him to die while fighting for his country.
[tr. Murray (1924)]

And if one finds
his death, his end, in some spear-thrust or cast,
then that is that, and no ignoble death
for a man defending his own land.
[tr. Fitzgerald (1974)]