וּמִצְרַ֕יִם הֶ֥בֶל וָרִ֖יק יַעְזֹ֑רוּ לָכֵן֙ קָרָ֣אתִי לָזֹ֔את רַ֥הַב הֵ֖ם שָֽׁבֶת׃
L’appui de l’Égypte, en effet, est vain et illusoire; aussi je dis de cette nation: "Ils font beaucoup de bruit, mais ils restent cois."
Ibn Ezra on Isaiah
לזאת To this.8A. V., Concerning this, that is, concerning Egypt. To Jerusalem. רהב הם שבת Their strength is to sit still. He who remains in Jerusalem, and will not go down to Egypt, will be strong and safe.
Rashi on Isaiah
They are haughty (רַהַב) of proud spirit.