Lamenting The Dead

Τὸ καλῦσον ἐπὶ νεκρῷ, ὅτι ἐκλέλοιπε φῶς, οὐχὶ πάντας τοὺς τεθνεῶτας λέγει καταθρηνεῖσθαι· ἀλλὰ τὸν ἔργοις νεκρωθέντα, καὶ τὴν ζῶσαν ἀνὰστροφὴν μὴ μετελθόντα, κλαίεσθαι βούλεται, ὡς τοῦ μέλλαντος φωτὸς ἀποτυχόντα. Ἅγιος Ἰσίδωρος Του Πηλουσιώτου, Βιβλίον Πρῶτον, Ἐπιστολή ΤΛΔ' Ἑρμινῳ Κομητι Source:  Migne PG 78.376a-b

'Weep over the dead man because his light has perished,' 1 does not mean that one should lament all who have died but him who has perished in his works, who did not turn and live; him it bids be wept over as one has lost the light. Saint Isidore of Pelusium,  Book 1, Letter 334, to Count Herminus 1 Sirach 22.10