וְיָֽדְעוּ֙ כָּל־בָּשָׂ֔ר כִּ֚י אֲנִ֣י יְהוָ֔ה הוֹצֵ֥אתִי חַרְבִּ֖י מִתַּעְרָ֑הּ לֹ֥א תָשׁ֖וּב עֽוֹד׃ (ס)
and all flesh shall know that I the LORD have drawn forth My sword out of its sheath; it shall not return any more.
Read midrashic interpretation of Ezekiel 21:10: and classical rabbinic exegesis.