Esther 8:13 Halakhah

פַּתְשֶׁ֣גֶן הַכְּתָ֗ב לְהִנָּ֤תֵֽן דָּת֙ בְּכָל־מְדִינָ֣ה וּמְדִינָ֔ה גָּל֖וּי לְכָל־הָעַמִּ֑ים וְלִהְי֨וֹת היהודיים [הַיְּהוּדִ֤ים] עתודים [עֲתִידִים֙] לַיּ֣וֹם הַזֶּ֔ה לְהִנָּקֵ֖ם מֵאֹיְבֵיהֶֽם׃

The copy of the writing, to be given out for a decree in every province, was to be published unto all the peoples, and that the Jews should be ready against that day to avenge themselves on their enemies.

Read halakhic rulings (Jewish law) on Esther 8:13: and classical halakhic sources.