בַּיּ֣וֹם הַה֔וּא יִֽהְיֶ֥ה מִצְרַ֖יִם כַּנָּשִׁ֑ים וְחָרַ֣ד ׀ וּפָחַ֗ד מִפְּנֵי֙ תְּנוּפַת֙ יַד־יְהוָ֣ה צְבָא֔וֹת אֲשֶׁר־ה֖וּא מֵנִ֥יף עָלָֽיו׃
In that day shall Egypt be like unto women; and it shall tremble and fear because of the shaking of the hand of the LORD of hosts, which He shaketh over it.
Read halakhic rulings (Jewish law) on Isaiah 19:16: and classical halakhic sources.