CHORUS: You are neither the first nor the last of mortals
to lose a good wife. You have to learn
that death is a debt we all must pay.

[ΚΥΚΛΩΨ: οὐ γάρ τι πρῶτος οὐδὲ λοίσθιος βροτῶν
γυναικὸς ἐσθλῆς ἤμπλακες· γίγνωσκε δὲ
ὡς πᾶσιν ἡμῖν κατθανεῖν ὀφείλεται.]

Euripides (485?-406? BC) Greek tragic dramatist

Alcestis [Ἄλκηστις ], l. 417ff (438 BC) [tr. Leuschnig/Leuschnig (2019)]
    (Source)

To Admetus. While meant as consolation, it also points out that Admetus himself is putting off that debt, and is mourning his wife, Alcestis, not because he "lost" her, but because he asked her (and everyone else) to die in his stead and only she would do so.

Some translators, as noted, indicate the line is given by some sort of leader of the Chorus.

(Source (Greek)). Other translations:

Thou'rt not the first, nor shalt thou be the last
Of mortal men, to lose a virtuous wife:
For know, death is a debt we all must pay.
[tr. Potter (1781)]

For 'mong men
You are not the first, nor yet shall you be last,
To lose a virtuous Consort; be assur'd
That death's a debt exacted from us all.
[tr. Wodhull (1782)]

For in no wise the first, nor the last of mortals hast thou lost thy dear wife: but learn, that to die is a debt we must all of us discharge.
[tr. Buckley (1858)]

For not the first;, nor yet the last of men art thou
of loving Wife who's been depriv'd; thou must allow
that all of us who're present here are bound to die!
[tr. HBL (1884), "Coryphaeus"]

Thou'rt not the first
Or last of mortals who has lost a wife
Famed for her vitue, but remember that
The debt of dying mustr be paid by all.
[tr. Cudworth (1888)]

Thou art by no means the first nor yet shalt be the last of men to lose a wife of worth; know this, we all of us are debtors unto death.
[tr. Coleridge (1891)]

Not first of mortals thou, nor shalt be last
To lose a noble wife; and, be thou sure,
From us, from all, this debt is due -- to die.
[tr. Way (1894)]

For thou art not the first nor last of men
To lose a noble wife; remember too
That all of us are bound, sometime, to die.
[tr. Beloit College (1908)]

Thou shalt not be the last, nor yet the first,
To lose a noble wife. Be brave, and know
To die is but a debt that all men owe.
[tr. Murray (1915)]

You are not the first and will not be the last to lose a noble wife. We all are doomed to die.
[tr. Aldington (1930), "Leader"]

Admetus, you are not the first man to lose a dear wife,
Nor will you be the last. Have patience, then, and remember
That death comes to all of us.
[tr. Fitts/Fitzgerald (1936), "Choragus"]

You are not the first of men, nor the last, to lose a noble wife. Consider: death is a debt that every one of us must pay.
[tr. Vellacott (1953)]

For you are not the first or last of mortals to lose a noble wife. Know that death is a debt we all must pay.
[tr. Kovacs (1994), "Chorus-Leader"]

You are not the first or last man on earth to lose a noble wife. Recognize that we are all death's debtors.
[tr. Davie (1996), "Chorus-Leader"]

For you are neihter the first nor the last of mortals
to lose a noble wife; understand that
everyone is obliged to die.
[tr. Rabinowitz (1999)]

You’re neither the first
nor will you be the last who has lost a noble wife.
You must accept the fact that we are all fated to die.
[tr. Theodoridis (2008)]

You are neither the first nor the last mortal
Who has lost a good wife. Understand this:
Dying is a debt we all have to pay.
[tr. @sentantiq (2020)]