לֹ֣א ׀ אֶל־עַמִּ֣ים רַבִּ֗ים עִמְקֵ֤י שָׂפָה֙ וְכִבְדֵ֣י לָשׁ֔וֹן אֲשֶׁ֥ר לֹֽא־תִשְׁמַ֖ע דִּבְרֵיהֶ֑ם אִם־לֹ֤א אֲלֵיהֶם֙ שְׁלַחְתִּ֔יךָ הֵ֖מָּה יִשְׁמְע֥וּ אֵלֶֽיךָ׃
Ce n’est pas à des peuples nombreux au langage obscur et à la langue lourde, dont tu ne comprends pas les paroles; si à ceux-là je t’envoyais, eux, ils t’écouteraient.
Ramban
IM LO’ (IF NOT) AS YE HAVE SPOKEN IN MINE EARS. The meaning thereof is as an expression of wonder: “Will I not do to you as ye have spoken?” Such is the way of the [Sacred] Language: [Thou art sent] not to many people of an unintelligible speech and of a slow tongue, whose words thou canst not understand. ‘Im lo’ (would they not) have hearkened unto thee if I sent thee to them?157Ezekiel 3:5-6. Similarly, ‘im lo’ (if not) as I have thought did it come to pass?158Isaiah 14:24.