Talmai — Addition B 7: The declared purpose: to make the kingdom secure once for all.
Licence: English and apparatus CC BY 4.0 (Talmai, Wroot Press); Greek from Swete, CC BY-SA. https://talmai.wrootpress.com/rights/
Canonical: https://talmai.wrootpress.com/unit/esth-plus-03.13-07/
Source edition: H. B. Swete, The Old Testament in Greek, 19.3.1a-7a

GREEK: ὅπως οἱ πάλαι καὶ νῦν δυσμενεῖς ἐν ἡμέρᾳ μιᾷ βιαίως εἰς τὸν ᾅδην κατελθόντες εἰς τὸν μετέπειτα χρόνον εὐσταθῆ καὶ ἀτάραχα παρέχωσιν ἡμῖν διὰ τέλους τὰ πράγματα.
ENGLISH (draft-awaiting-approval): so that those hostile of old and now, having gone down by force to Hades in a single day, may leave our affairs settled and undisturbed for all time to come.

PARALLELS:
- [Verbatim] Tosefet le-Esther, צו המלך הראשון (Tosefet le-Esther (he.wikisource editorial page: Additions to Esther in Hebrew)) — conduit: medieval retranslation. 'הנבלים כלם ירדו ביום אחד שאולה' renders Addition B's closing purpose clause (enemies to Hades in one day), absent from MT.
- [Motif] Rashi on Megillah 16b:12:1 (Rashi on Bavli Megillah 9a-17a) — conduit: oral. 'No standing, no place to set foot' is the specific elimination-forever language matching Addition B's stated purpose that the enemies never trouble the kingdom again.
- [Motif] Sifrei Aggadah on Esther, Midrash Panim Acherim, Version I 1:7 (Sifrei Aggadah on Esther: Midrash Panim Acherim, Version I) — conduit: lost intermediary. Haman's stated grievance is explicitly ancestral -- 'the Jews have hated my fathers from of old' -- matching Addition B's distinctive temporal phrase 'those hostile of old and now' (tous palai kai nyn dysmeneis), a specific continuity-of-enmity claim MT does not supply.
- [Motif] Megillah 16b:12 (Bavli Megillah 9a-17a) — conduit: oral. Haman's sons' epitaph, written so they would have 'no rising again after their fall,' ironically echoes the plus's language of the enemies' destruction 'once for all... undisturbed for all time.'